Concept stringers with exercise

[norbs57]

Fixes #2184
New concept stringers
New concept exercise Meteorology

[github-actions]

Dear norbs57

Thank you for contributing to the Go track on Exercism! 💙
You will see some automated feedback below 🤖. It would be great if you can make sure your PR covers those points. This will save your reviewer some time and your change can be merged quicker.

• 📜 The following files usually contain very similar content.

  • concepts/<concept>/about.md
  • concepts/<concept>/introduction.md
  • exercises/concept/<exercise>/.docs/introduction.md

  Please check whether the changes you made to one of these also need to be applied to the others.

• 🧦 If you changed the function signature or the function comment in the exemplar file or the stub file (<exercise>.go), make sure the change is applied to both files.

• ✍️ If your PR is not related to an existing issue (and is not self-explaining like a typo fix), please make sure the description explains why the change you made is necessary.

• 🔤 If your PR fixes an easy to identify typo, if would be great if you could check for that typo in the whole repo. For example, if you found Unicdoe, use "replace all" in your editor (or command line magic) to fix it consistently.

Dear Reviewer/Maintainer

• 📏 Make sure you set the appropriate x:size label for the PR. (This also works after merging, in case you forgot about it.)

• 🔍 Don't be too nit-picky. If the PR is a clear improvement compared to the status quo, it should be approved as clear signal this is good to be merged even if the minor comments you might have are not addressed by the contributor. Further improvement ideas can be captured in issues (if important enough) and implemented via additional PRs.

• 🤔 After reviewing the diff in the "Files changed" section, take a moment to think about whether there are changes missing from the diff. Does something need to be adjusted in other places so the code or content stays consistent?

_{Automated comment created by PR Commenter 🤖.}

[nahuakang]

First attempt at reviewing 👍 😃 Thanks for creating this! I'll read the test cases a bit later and have currently 1 question and 1 nitpick.

[norbs57]

Thanks Nahua!

[nahuakang]

Tests are 👍 I just have 1 more comment but maybe @junedev or @andrerfcsantos are more suitable to judge whether this comment from me is a good idea or not. Thanks again!

[andrerfcsantos]

Thanks a lot for making this exercise. What you have here is an excellent foundation for the exercise already, so well done!

I left some suggestions in the about.md file, but of course please make those changes in the other places were they are needed too.

And feel free to disagree with the suggestions :)

[andrerfcsantos]

Some more changes

[norbs57]

I would like to pass on this PR - it would be great if someone else could finish it.

[andrerfcsantos]

@norbs57 I can finish it up for you - no worries :)