added html email and made site deployment ready | security fixes still needed

app/config.py.example

@@ -8,14 +8,13 @@ class Config:
         'sqlite:///' + os.path.join(basedir, '../instance/registration.db')
     SQLALCHEMY_TRACK_MODIFICATIONS = False
 
-    # Email Settings (Update these!)
-    MAIL_SERVER = 
-    MAIL_PORT = 
+    MAIL_SERVER = 'mail.your-server.de'
+    MAIL_PORT = 587
     MAIL_USE_TLS = True
     MAIL_USERNAME = os.environ.get('EMAIL_USER')
     MAIL_PASSWORD = os.environ.get('EMAIL_PASS')
     MAIL_DEFAULT_SENDER = os.environ.get('EMAIL_USER')
 
-    MAX_SPOTS =
+    MAX_SPOTS = 84
     TUM_DOMAIN = "tum.de"
-    DISCORD_LINK =
+    DISCORD_LINK = os.environ.get('DISCORD_LINK')