Update readme.md

[teinett]

Added notes for the beginners

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)
• If applicable, I’ve added docs and tests

Description of changes

TODO

[github-actions]

Hi! It seems some of the things asked in the template are missing? Please edit your post to fill out everything.

• Initial checklist (todo)
• Description of changes (todo)

You won’t get any more notifications from me, but I’ll keep on updating this comment, and remove it when done!

If you need it, here’s the original template

<!--
  Please check the needed checkboxes ([ ] -> [x]). Leave the
  comments as they are, they won’t show on GitHub.
  We are excited about pull requests, but please try to limit the scope, provide
  a general description of the changes, and remember, it’s up to you to convince
  us to land it.
-->

### Initial checklist

*   [ ] I read the support docs <!-- https://github.com/syntax-tree/.github/blob/main/support.md -->
*   [ ] I read the contributing guide <!-- https://github.com/syntax-tree/.github/blob/main/contributing.md -->
*   [ ] I agree to follow the code of conduct <!-- https://github.com/syntax-tree/.github/blob/main/code-of-conduct.md -->
*   [ ] I searched issues and couldn’t find anything (or linked relevant results below) <!-- https://github.com/search?q=user%3Asyntax-tree&type=Issues -->
*   [ ] If applicable, I’ve added docs and tests

### Description of changes

TODO

<!--do not edit: pr-->

Thanks,
— bb

[ChristianMurphy]

Thanks @teinett!

[ChristianMurphy]

Thanks @teinett! 🙇