changed gitignore, corrected tabs, added some comments

.gitignore

@@ -81,6 +81,7 @@ modules.xml
 # End of https://www.gitignore.io/api/pycharm+iml
 
 *.log
+__pycache__/
 config.json
 config-devel.json
-bot_test.py
+bot_test.py

HSMensaW_botA.py

@@ -1,6 +1,14 @@
 #!/usr/bin/python3
 # -*- coding: utf-8 -*-
-import asyncio
+
+# since 3.5: type hints 
+# def <name>(<args) -> <returntype>:
+
+import asyncio # write concurrent code (not threading. not multiprocessing)
+# it's cooperative multitasking, no parallelism
+# coroutines: suspend execution before return and pass control to another coroutine
+# use await only in async functions
+
 import datetime
 import json
 import signal
@@ -26,6 +34,7 @@ from telepot.namedtuple import InlineKeyboardMarkup, InlineKeyboardButton
 
 
 class Essen:
+    """ Test Docstring """
     def __init__(self, name, preis, kategorie):
         self.name = name
         self.preis = preis