diff --git a/docs/categories/index.html b/docs/categories/index.html
index a65a388..c4cd3d3 100644
--- a/docs/categories/index.html
+++ b/docs/categories/index.html
@@ -52,25 +52,8 @@
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-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
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@@ -79,24 +62,6 @@
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\ No newline at end of file
diff --git a/docs/docs/about/index.html b/docs/docs/about/index.html
index 6e801ac..374382c 100644
--- a/docs/docs/about/index.html
+++ b/docs/docs/about/index.html
@@ -56,12 +56,8 @@ Most icons were provided by fontawesome under this license.">
 </label>
 <strong>About</strong>
 <label for=toc-control>
-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
 </label>
 </div>
-<aside class="hidden clearfix">
-<nav id=TableOfContents></nav>
-</aside>
 </header>
 <article class=markdown><h1 id=about-witty>
 About WiTTY
@@ -88,11 +84,6 @@ window (xterm.js) and creates a websocket with the server, which relays the data
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 <label for=menu-control class="hidden book-menu-overlay"></label>
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 </main>
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diff --git a/docs/docs/index.html b/docs/docs/index.html
index 5f731ea..27f84a1 100644
--- a/docs/docs/index.html
+++ b/docs/docs/index.html
@@ -52,12 +52,8 @@
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-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
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@@ -72,11 +68,6 @@
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diff --git a/docs/docs/install/index.html b/docs/docs/install/index.html
index e1b8f67..ea109ef 100644
--- a/docs/docs/install/index.html
+++ b/docs/docs/install/index.html
@@ -18,7 +18,7 @@ tar -xzvf witty_vx.x.x_xxx.tar.gz
  For example, use tar -xzvf witty_v1.">
 <meta property="og:type" content="article">
 <meta property="og:url" content="https://syssecfsu.github.io/witty/docs/install/"><meta property="article:section" content="docs">
-<meta property="article:modified_time" content="2022-02-06T20:15:40-05:00">
+<meta property="article:modified_time" content="2022-02-07T12:30:17-05:00">
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 <link rel=manifest href=https://syssecfsu.github.io/witty/manifest.json>
 <link rel=icon href=https://syssecfsu.github.io/witty/favicon.png type=image/x-icon>
@@ -62,12 +62,8 @@ tar -xzvf witty_vx.x.x_xxx.tar.gz
 </label>
 <strong>Installation</strong>
 <label for=toc-control>
-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
 </label>
 </div>
-<aside class="hidden clearfix">
-<nav id=TableOfContents></nav>
-</aside>
 </header>
 <article class=markdown><h1 id=installation>
 Installation
@@ -167,9 +163,9 @@ B -- ssh --> C[Windows: 192.168.1.3 <br> runs SSH server ]
 </article>
 <footer class=book-footer>
 <div class="flex flex-wrap justify-between">
-<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/acce7b514f3f5fc0796bdbef318863e7707934fd title="Last modified by Zhi Wang | February 6, 2022" target=_blank rel=noopener>
+<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/924a38a5d2aae36483f97d8669c89b57a01031de title="Last modified by Zhi Wang | February 7, 2022" target=_blank rel=noopener>
 <img src=https://syssecfsu.github.io/witty/svg/calendar.svg class=book-icon alt=Calendar>
-<span>February 6, 2022</span>
+<span>February 7, 2022</span>
 </a>
 </div>
 </div>
@@ -179,11 +175,6 @@ B -- ssh --> C[Windows: 192.168.1.3 <br> runs SSH server ]
 </div>
 <label for=menu-control class="hidden book-menu-overlay"></label>
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-<div class=book-toc-content>
-<nav id=TableOfContents></nav>
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-</aside>
 </main>
 </body>
 </html>
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diff --git a/docs/docs/record/index.html b/docs/docs/record/index.html
index 41659f3..50e0dd7 100644
--- a/docs/docs/record/index.html
+++ b/docs/docs/record/index.html
@@ -56,12 +56,8 @@ WiTTY provides two sub-commands to merge and replay recorded sessions.">
 </label>
 <strong>Record Sessions</strong>
 <label for=toc-control>
-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
 </label>
 </div>
-<aside class="hidden clearfix">
-<nav id=TableOfContents></nav>
-</aside>
 </header>
 <article class=markdown><h1 id=record-sessions>
 Record Sessions
@@ -100,11 +96,6 @@ All the recorded sessions are located under the <code>records</code> directory.
 </div>
 <label for=menu-control class="hidden book-menu-overlay"></label>
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-<div class=book-toc-content>
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diff --git a/docs/docs/ui/index.html b/docs/docs/ui/index.html
index f9cabc1..5c81ddf 100644
--- a/docs/docs/ui/index.html
+++ b/docs/docs/ui/index.html
@@ -10,7 +10,7 @@
    Sub-command Description     adduser Add/update an authenticated user with their password   deluser Delete an authenticated user   listusers List all the authenticated users   replay Replay a recorded session (set your terminal to 120x36 first)   merge Merge several recorded sessions into one session   run Run a specified CLI program when user connects with browser    Some sub-commands have options.">
 <meta property="og:type" content="article">
 <meta property="og:url" content="https://syssecfsu.github.io/witty/docs/ui/"><meta property="article:section" content="docs">
-<meta property="article:modified_time" content="2022-02-06T20:15:40-05:00">
+<meta property="article:modified_time" content="2022-02-07T12:30:17-05:00">
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 <link rel=manifest href=https://syssecfsu.github.io/witty/manifest.json>
 <link rel=icon href=https://syssecfsu.github.io/witty/favicon.png type=image/x-icon>
@@ -54,12 +54,8 @@
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-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
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-<aside class="hidden clearfix">
-<nav id=TableOfContents></nav>
-</aside>
 </header>
 <article class=markdown><h1 id=sub-commands>
 Sub-commands
@@ -143,9 +139,9 @@ Web Interface (witty run)
 </article>
 <footer class=book-footer>
 <div class="flex flex-wrap justify-between">
-<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/acce7b514f3f5fc0796bdbef318863e7707934fd title="Last modified by Zhi Wang | February 6, 2022" target=_blank rel=noopener>
+<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/924a38a5d2aae36483f97d8669c89b57a01031de title="Last modified by Zhi Wang | February 7, 2022" target=_blank rel=noopener>
 <img src=https://syssecfsu.github.io/witty/svg/calendar.svg class=book-icon alt=Calendar>
-<span>February 6, 2022</span>
+<span>February 7, 2022</span>
 </a>
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@@ -155,11 +151,6 @@ Web Interface (witty run)
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diff --git a/docs/docs/vm/index.html b/docs/docs/vm/index.html
index 7eb0e24..103fa88 100644
--- a/docs/docs/vm/index.html
+++ b/docs/docs/vm/index.html
@@ -10,7 +10,7 @@ By default, the SEED VM uses only NAT-based network, which means that the VM can
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 <meta property="og:type" content="article">
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-<meta property="article:modified_time" content="2022-02-06T20:15:40-05:00">
+<meta property="article:modified_time" content="2022-02-07T12:30:17-05:00">
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@@ -54,12 +54,8 @@ By default, the SEED VM uses only NAT-based network, which means that the VM can
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 </div>
-<aside class="hidden clearfix">
-<nav id=TableOfContents></nav>
-</aside>
 </header>
 <article class=markdown><h1 id=use-witty-with-seed-vm>
 Use WiTTY with SEED VM
@@ -78,9 +74,9 @@ If the host runs Windows, make sure virtualbox host adapter is not disabled in t
 </article>
 <footer class=book-footer>
 <div class="flex flex-wrap justify-between">
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+<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/924a38a5d2aae36483f97d8669c89b57a01031de title="Last modified by Zhi Wang | February 7, 2022" target=_blank rel=noopener>
 <img src=https://syssecfsu.github.io/witty/svg/calendar.svg class=book-icon alt=Calendar>
-<span>February 6, 2022</span>
+<span>February 7, 2022</span>
 </a>
 </div>
 </div>
@@ -90,11 +86,6 @@ If the host runs Windows, make sure virtualbox host adapter is not disabled in t
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-<div class=book-toc-content>
-<nav id=TableOfContents></nav>
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diff --git a/docs/index.html b/docs/index.html
index c13e21b..e241fe7 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -54,12 +54,8 @@
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 <strong>Introduction</strong>
 <label for=toc-control>
-<img src=https://syssecfsu.github.io/witty/svg/toc.svg class=book-icon alt="Table of Contents">
 </label>
 </div>
-<aside class="hidden clearfix">
-<nav id=TableOfContents></nav>
-</aside>
 </header>
 <article class=markdown><h1 id=introduction>
 Introduction
@@ -90,9 +86,9 @@ Instructors can also record their demos in WiTTY and send them to students. Stud
 </article>
 <footer class=book-footer>
 <div class="flex flex-wrap justify-between">
-<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/cff6bb968e067e1c82a63ab27fefb6b6346a819e title="Last modified by Zhi Wang | February 6, 2022" target=_blank rel=noopener>
+<div><a class="flex align-center" href=https://github.com/syssecfsu/witty-docs/commit/924a38a5d2aae36483f97d8669c89b57a01031de title="Last modified by Zhi Wang | February 7, 2022" target=_blank rel=noopener>
 <img src=https://syssecfsu.github.io/witty/svg/calendar.svg class=book-icon alt=Calendar>
-<span>February 6, 2022</span>
+<span>February 7, 2022</span>
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@@ -102,11 +98,6 @@ Instructors can also record their demos in WiTTY and send them to students. Stud
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+<meta property="article:modified_time" content="2022-02-07T12:30:17-05:00">
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@@ -52,12 +52,8 @@
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@@ -70,9 +66,9 @@
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+<span>February 7, 2022</span>
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diff --git a/docs/sitemap.xml b/docs/sitemap.xml
index 0eccf8c..040b926 100644
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diff --git a/docs/tags/index.html b/docs/tags/index.html
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+++ b/docs/tags/index.html
@@ -52,25 +52,8 @@
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@@ -79,24 +62,6 @@
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