Check docs are up to date

[ErikSchierboom]

Please check if your documentation files are still up-to-date.

The key documentation files to check are:

• docs/ABOUT.md
• docs/INSTALLATION.md
• docs/LEARNING.md
• docs/RESOURCES.md
• docs/TESTS.md
• exercises/shared/.docs/help.md
• exercises/shared/.docs/tests.md

There might be more.

Link check report

To help identify invalid links, we've automatically checked the links of all *.md files in this repo.
This is the report of that check:

📝 Summary
---------------------
🔍 Total...........62
✅ Successful......62
⏳ Timeouts.........0
🔀 Redirected.......0
👻 Excluded.........0
🚫 Errors...........0

Tracking

exercism/v3-launch#54

[ynfle]

Exercism supports Nim 1.0.0 and later versions.

Is this what we want to keep with the test runner? I'd suggest keeping it to the version in the test runner
(From docs/INSTALLATION.md)

@ee7

[ynfle]

#320 depends on the version. Thoughts?