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...........28
✅ Successful......22
⏳ Timeouts.........0
🔀 Redirected.......0
👻 Excluded.........0
🚫 Errors...........6

Errors in ./README.md
✗ https://msdn.microsoft.com/en-us/library/dd878238(v=vs.85).aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/dd878238(v=vs.85).aspx))
✗ https://msdn.microsoft.com/en-us/library/dd878291(v=vs.85).aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/dd878291(v=vs.85).aspx))
✗ https://msdn.microsoft.com/en-us/library/ms714657(v=vs.85).aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/ms714657(v=vs.85).aspx))
✗ https://msdn.microsoft.com/en-us/library/ms714428(v=vs.85).aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/ms714428(v=vs.85).aspx))
✗ https://msdn.microsoft.com/en-us/library/dd878270(v=vs.85).aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/dd878270(v=vs.85).aspx))

Errors in ./docs/LEARNING.md
✗ https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/?view=powershell-6 (error following redirect for url (https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about?view=powershell-6): too many redirects)

Tracking

exercism/v3-launch#54

[hkbertoson]

Opened #178 for this.