chore: explain this is the community issue tracker

[sileht]

Change-Id: I13845bfd6a4f6538e8c7ed50f2b2c4d742a4cc79

[jd]

@mergifyio squash

[VitikaSoni]

Hello @jd , I came across your open source project and I was interested in contributing. However, I saw this commit, all of the code files are deleted. I was wondering if there was a particular reason for this and if the project is still active. I would appreciate any information you could provide. Thank you.

[DouglasBlackwood]

Hi @VitikaSoni , @jd answered this question here: https://github.com/Mergifyio/mergify/discussions/5035#discussioncomment-3372447.

[VitikaSoni]

@DouglasBlackwood thanks!