Issue and Pull Request Submission Guide

[frankambrosio3]

Add a guide to submit issues and pull requests as part of the document maintenance framework.

Issues can be submitted in order to request changes or additions to the documents and should be tagged with the documents they are referring to.
Pull Requests will allow for change tracking and collaborative review of any changes implemented into any document. The PRs should also be tagged with the issue they are "fixing" and they should reference the document under modification in the PR title.

This guide should be added to the README of the pipeline-solutions main page.

Issue and PR templates would be a nice addition.

[frankambrosio3]

https://docs.github.com/en/issues/tracking-your-work-with-issues/creating-an-issue