Added basic keycloak openid instructions

[hungrymonkey]

Pull Request Checklist

• Pull request is based on the develop branch
• Pull request includes a changelog file. The entry should:
  • Be a short description of your change which makes sense to users. "Fixed a bug that prevented receiving messages from other servers." instead of "Moved X method from EventStore to EventWorkerStore.".
  • Use markdown where necessary, mostly for code blocks.
  • End with either a period (.) or an exclamation mark (!).
  • Start with a capital letter.
• Pull request includes a sign off
• [?] Code style is correct (run the linters)

[hungrymonkey]

Am I suppose to create an issue page and change log?

[clokep]

I requested a few changes, but they're all rather minor. Thanks for adding this example!

[clokep]

Am I suppose to create an issue page and change log?

Looks like you've got everything you need!

[hungrymonkey]

@clokep done

[clokep]

Thanks! 👍

[hungrymonkey]

@clokep , You could have told me and I would have squashed my commits. I am sorry. I polluted the history by spreading through 5 different commits which is excessive.

[hungrymonkey]

Nevermind, I did not know github auto squash commits. Cool

[clokep]

Yeah, there's a little drop down where you can choose to do a merge, a squash or a rebase. For synapse we generally do a squash to keep the history linear!