QuickStart: improve install section

doc/QuickStart.md

@@ -3,33 +3,39 @@ QuickStart
 This is a work-in-progress rough draft Quick Start guide. This notification will be removed when this guide is mature.
 
 <!-- md-toc-begin -->
-* [QuickStart](#quickstart)
-  * [Installing](#installing)
-    * [Prerequisites](#prerequisites)
-      * [Installing CPAN modules](#installing-cpan-modules)
-  * [First-time Configuration](#first-time-configuration)
-    * [Clone data-directory](#clone-data-directory)
-    * [Edit Registry](#edit-registry)
-      * [Recommended settings for IRC Networks](#recommended-settings-for-irc-networks)
-        * [Freenode](#freenode)
-        * [IRCnet](#ircnet)
-        * [Other networks](#other-networks)
-  * [Starting PBot](#starting-pbot)
-    * [Usage](#usage)
-      * [Overriding directories](#overriding-directories)
-      * [Overriding registry](#overriding-registry)
-  * [Additional Configuration](#additional-configuration)
-    * [Adding Channels](#adding-channels)
-    * [Adding Admins](#adding-admins)
-    * [Loading Plugins](#loading-plugins)
+* [Installing](#installing)
+  * [Installing Perl](#installing-perl)
+  * [Installing CPAN modules](#installing-cpan-modules)
+  * [Installing PBot](#installing-pbot)
+    * [git (recommended)](#git-recommended)
+    * [Download zip archive](#download-zip-archive)
+* [First-time Configuration](#first-time-configuration)
+  * [Clone data-directory](#clone-data-directory)
+  * [Edit Registry](#edit-registry)
+    * [Recommended settings for IRC Networks](#recommended-settings-for-irc-networks)
+      * [Freenode](#freenode)
+      * [IRCnet](#ircnet)
+      * [Other networks](#other-networks)
+* [Starting PBot](#starting-pbot)
+  * [Usage](#usage)
+    * [Overriding directories](#overriding-directories)
+    * [Overriding registry](#overriding-registry)
+* [Additional Configuration](#additional-configuration)
+  * [Adding Channels](#adding-channels)
+  * [Adding Admins](#adding-admins)
+  * [Loading Plugins](#loading-plugins)
 <!-- md-toc-end -->
 
 Installing
 ----------
 
-### Prerequisites
+### Installing Perl
 
-#### Installing CPAN modules
+PBot uses the [Perl programming language](https://www.perl.org/). Perl is usually
+part of a base Linux install. If you do not have Perl installed, please see your
+system's documentation to install it.
+
+### Installing CPAN modules
 
 PBot has many features; some of these depend on Perl modules written by others.
 This list can be found in the `MODULES` file in the root directory of this source.
@@ -42,29 +48,60 @@ Some CPAN modules may fail to pass certain tests due to outdated variables.
 Despite these test failures, their core functionality should still work as
 expected.
 
+### Installing PBot
+
+#### git (recommended)
+
+The recommended way to install PBot is via `git`.  This will allow you easily update to
+the latest version of PBot via the `git pull` command. Also, if you become interested in
+contributing improvements to PBot, you will be able to submit them via `git`.
+
+The command to install with `git` is:
+
+    $ git clone https://github.com/pragma-/pbot.git
+
+#### Download zip archive
+
+Alternatively, you may [download a ZIP archive](https://github.com/pragma-/pbot/archive/master.zip).
+
 First-time Configuration
 ------------------------
 
+After git-cloning (or unpacking the ZIP archive) you should have a directory named
+`pbot/` (or `pbot-master/`). It should contain at least these directories and files:
+
+Name | Description
+--- | ---
+`PBot/` | PBot source tree
+`Plugins/` | Dynamically loadable internal plugins
+`modules/` | External command-line executables invokable by PBot commands
+`data/` | Default data-directory
+`doc/` | Helpful documentation
+`pbot` | executable used to launch PBot
+
+You may create symbolic-links to the `pbot` executable in `$HOME/bin/` or even
+in `/usr/local/bin/`.
+
 ### Clone data-directory
 
-PBot uses a data-directory to store all its configuration settings and data. It
-is **_strongly_** recommended to clone the default data-directory for each PBot
-connection.
+PBot uses a data-directory to store all its configuration settings and data. You must
+clone this data-directory for each instance of PBot you want to run.
 
 Here we clone the data-directory for two PBot instances, naming them after the
 IRC network they will connect to:
 
-    cp -r data freenode
-    cp -r data ircnet
+    $ cd pbot (or pbot-master)
+    $ cp -r data freenode
+    $ cp -r data ircnet
 
 Alternatively, you could name it after your bot's nickname:
 
-    cp -r data coolbot
+    $ cp -r data coolbot
 
 ### Edit Registry
 
 PBot configuration is stored in a registry of key/value pairs grouped by sections.
-See https://github.com/pragma-/pbot/blob/master/doc/Registry.md for more details.
+See the [Registry documentation](https://github.com/pragma-/pbot/blob/master/doc/Registry.md) for more details.
 
 Now you may edit the `registry` file in your data-directory to configure PBot settings. Alternatively,
 you may [override the registry entries via the command-line](#overriding-registry).
@@ -80,7 +117,7 @@ irc.server | IRC server address to connect. | irc.freenode.net
 irc.port | IRC server port. | 6667
 general.trigger | Bot trigger. Can be a character class containing multiple trigger characters. Can be overridden per-channel. | [!]
 
-For a more comprehensive list see https://github.com/pragma-/pbot/blob/master/doc/Registry.md#list-of-recognized-registry-items.
+For a more comprehensive list see [this table](https://github.com/pragma-/pbot/blob/master/doc/Registry.md#list-of-recognized-registry-items).
 
 #### Recommended settings for IRC Networks
 ##### Freenode
@@ -115,7 +152,7 @@ general.op_command | Command to send to `general.op_nick` to request channel OP
 ##### Other networks
 
 Other networks are untested. They should be very similiar to either Freenode or IRCnet, and so one or both of those
-recommended settings should suffice. If you have any issues, please report them at https://github.com/pragma-/pbot/issues
+recommended settings should suffice. If you have any issues, please [report them here](https://github.com/pragma-/pbot/issues)
 or in the `#pbot2` channel on the Freenode network.
 
 Starting PBot