Add /commands to help

webhook.php

@@ -1,4 +1,5 @@
 <?php
+# vim: set tabstop=2 shiftwidth=2 expandtab:
 $bot_name = "quadnite_bot";
 $bot_api = require('api_key.php');
 
@@ -355,7 +356,11 @@ function rate() {
 }
 
 function help() {
-  send_html('<a href="https://t.me/quadnite/9">Help Page</a>');
+  send_html('You can either check /commands for a short overview or check the <a href="https://t.me/quadnite/9">Help Page</a>.');
+}
+
+function commands() {
+  send_text(file_get_contents('command_list.txt'));
 }
 
 // Get JSON from post, store it and decode it.
@@ -457,6 +462,10 @@ $modules = array(
   array(
     "command" => "/rate",
     "function" => "rate();"
+  ),
+  array(
+    "command" => "/commands",
+    "function" => "commands();"
   )
 );