refactor

alembic.ini

@@ -55,7 +55,8 @@ version_path_separator = os
 # are written from script.py.mako
 # output_encoding = utf-8
 
-sqlalchemy.url = postgresql+asyncpg://trevor:R0sebud@192.168.0.102/bot_db
+# URL to database - will be overridden by env.py from environment variables
+sqlalchemy.url = driver://user:pass@localhost/dbname
 
 [post_write_hooks]
 # post_write_hooks defines scripts or Python functions that are run