n/helen.md: fix missing tags

Resolves: #320

Gemfile.lock

@@ -14,8 +14,8 @@ GEM
       execjs
     coffee-script-source (1.11.1)
     colorator (1.1.0)
-    commonmarker (0.23.6)
-    concurrent-ruby (1.1.10)
+    commonmarker (0.23.7)
+    concurrent-ruby (1.2.0)
     dnsruby (1.61.9)
       simpleidn (~> 0.1)
     em-websocket (0.5.3)

n/helen.md

@@ -2,14 +2,16 @@
 layout: null
 permalink: /n/helen.html
 sitemap: false
-month: 01 of 2023
-monthly: "46,81 c/kWh"
+month: 02 of 2023
+monthly: "31.58 c/kWh"
 basicdistribution: "5.51 €/month"
 distributionmargin: "4.07 c/kWh"
 basicstock: "3,93 €/month"
 stockmargin: "0,38 c/kWh"
 omahelenhighprice: "20 c/kWh"
 omahelenlowprice: "5 c/kWh"
+hattiwatthighprice: "30 c/kWh"
+hattiwattlowprice: "10 c/kWh"
 ---
 
 Tuntihinta @ [Apple App Store](https://apps.apple.com/app/tuntihinta/id824684537) [Google Play](https://play.google.com/store/apps/details?id=fi.fingrid.tuntihinta)
@@ -31,6 +33,9 @@ Helen markkinahintasähkö kuukaudelle {{ page.month }} on {{ page.monthly }}.
 * OmaHelen kohtelee alle {{ page.omahelenlowprice }} halpana ja yli {{ page.omahelenhighprice }} kalliina, joten vaihtoehtoiset kaavat ovat:
   * Kallis: <strong>{{ page.omahelenhighprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (OmaHelenin korkea hinta + Marginaali)
   * Halpa: <strong>{{ page.omahelenlowprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (OmaHelenin matala hinta + Marginaali)
+* [HattiWatt](https://hattiwatt.com/) vuorostaan sanoo korkean olevan yli {{ page.hattiwatthighprice }} ja halvan olevan alle {{ page.hattiwattlowprice }}. Se tosin näyttää hinnan myös liikennevaloin.
+  * Halpa: <strong>{{ page.hattiwattlowprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (HattiWattin matala hinta + Marginaali)
+  * Kallis: <strong>{{ page.hattiwatthighprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (HattiWattin korkea hinta + Marginaali)
 
 ## Lähteet
 
@@ -53,8 +58,11 @@ Helen's monthly market price for month {{ page.month }} is {{ page.monthly }}.
 * Cheap: <strong>({{ page.monthly }} + {{ page.distributionmargin }}) / 2</strong> (Helen's Market Price Electricity + distribution margin / 2), ***round down***
 * Margin: <strong>{{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (Distribution fee + stock margin)
 * OmaHelen app treats {{ page.omahelenlowprice }} as cheap and over {{ page.omahelenhighprice }} as expensive, so alternative equations are:
-  * Expensive: <strong>{{ page.omahelenhighprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (OmaHelen's high price + Marginal)
-  * Cheap: <strong>{{ page.omahelenlowprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (OmaHelen's low price + Marginal)
+  * Expensive: <strong>{{ page.omahelenhighprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (OmaHelen's high price + Margin)
+  * Cheap: <strong>{{ page.omahelenlowprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (OmaHelen's low price + Margin)
+* [HattiWatt](https://hattiwatt.com/) again treats over {{ page.hattiwatthighprice }} as high price with low price being {{ page.hattiwattlowprice }}. It however shows price in traffic lights.
+  * Cheap: <strong>{{ page.hattiwattlowprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (HattiWatt's low price + Margin))
+  * Expensive: <strong>{{ page.hattiwatthighprice }} + {{ page.distributionmargin }} + {{ page.stockmargin }}</strong> (HattiWatt's high price + Margin)
 
 ## Sources