feat: new instructions (#27)

* feat: new instructions

* fix: use --build flag

Author: rubyowo

docs/setup/operating-systems/linux-docker.md

@@ -172,9 +172,11 @@ This creates a folder called Zeppelin and clones the bot code there.
      - Do not use `$'"(){}#` in the password
 5. When you are done editing, press Ctrl-X, then Y, then Enter to save and exit Nano.
 
-## Start the bot
+## Build and Start the bot
 
-`docker compose -f docker-compose.production.yml up -d`
+`docker compose -f docker-compose.production.yml up -d --build`
+
+**NOTE**: Make sure to run the above command every time you update/change the source code.
 
 The bot will pull images and build other images, create the containers, and start them. It will probably take about a minute or two to start.