added help

schneiderbot.py

@@ -112,7 +112,16 @@ Mhmm, lecker. Guten Appetit!""")
 
 def help(bot, update):
     """Send a message when the command /help is issued."""
-    update.message.reply_text('Help!')
+    update.message.reply_text("""Commands:
+*Mensa*:
+/mensa _mensa_  - prints filtered list of meals for _mensa_ (if no _mensa_ given, zentralmensa is used)
+/mensa _mensa_ full - prints full list of meals for _mensa_ (if no _mensa_ given, zentralmensa is used)
+    
+*Fun*:
+/megie - random Axel Stoll qoute
+/manta - random Opel Manta joke
+
+/help - this help text""", parse_mode=ParseMode.MARKDOWN)
 
 def magie(bot, update):
     """MAGIEEEEEE"""
@@ -132,10 +141,8 @@ def mensa(bot, update, args):
             which = args[0]
         elif arg in MODES:
             categories = MODES[arg]
-
-
-    if which not in MENSA_NAME:
-        update.message.reply_text("Diese Mensa gibt es nicht! RTFM und versuchs nochmal.")
+        else: 
+            update.message.reply_text("Falscher Aufruf! RTFM und versuchs nochmal.")
             return
 
     today = datetime.datetime.now().date().weekday() + 1