Update DOCS.md on location of apps source files

[gmeisl]

Problem/Motivation

It seems that with the AppDaemon Addon the source code for apps should be placed in /root/addon_configs/a0d7b954_appdaemon/apps and not under config/apps (as written in all AppDaemon documentation/tutorials that I found)

Expected behavior

DOCS.md should state where application code should be located (and also other potential differences to https://appdaemon.readthedocs.io/en/latest/index.html )

Proposed changes

More explicit documentation. Thanks!

[github-actions]

There hasn't been any activity on this issue recently, so we clean up some of the older and inactive issues.
Please make sure to update to the latest version and check if that solves the issue. Let us know if that works for you by leaving a comment 👍
This issue has now been marked as stale and will be closed if no further activity occurs. Thanks!