Added !!/help command

Might be useful.

chatcommunicate.py

@@ -192,4 +192,6 @@ def watcher(ev, wrap2):
             elif "error" in states or "failure" in states:
                 ev.message.reply("CI build failed! :( Please check your commit.")
             elif "pending" in states or not states:
-                ev.message.reply("CI build is still pending, wait until the build has finished and then pull again.")
+                ev.message.reply("CI build is still pending, wait until the build has finished and then pull again.")
+    if content_lower.startswith("!!/help"):
+        ev.message.reply("I'm [SmokeDetector](https://github.com/Charcoal-SE/SmokeDetector), a bot that detects spam and low-quality posts on the network and posts alerts to chat.")