updated readme for the persistence

README.md

@@ -21,4 +21,12 @@ vim config.json
 
 # Run
 docker-compose up -d
-```
+```
+
+#### (Optional) Persist the DB 💽
+
+Instabot saved the followers etc. in a sqlite db called `follows_db.db`. If you wish to persist the changes between updates you need to uncomment the line inside `docker-compose.yml` and run `touch data.db` before running `docker-compose up -d`
+
+### Credits 
+
+The actual code for the bot is from https://github.com/instabot-py/instabot.py