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:

Error: Failed to read file: README.md, reason: No such file or directory (os error 2)

✗ https://msdn.microsoft.com/en-us/library/bb308959.aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/bb308959.aspx))
⧖ http://geekswithblogs.net/BlackRabbitCoder/archive/2015/04/02/c.net-little-wonders-amp-little-pitfalls-the-complete-collection.aspx
📝 Summary

🔍 Total...........79
✅ Successful......77
⏳ Timeouts.........1
🔀 Redirected.......0
👻 Excluded.........0
🚫 Errors...........1

Errors in docs/ABOUT.md
✗ https://msdn.microsoft.com/en-us/library/bb308959.aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/bb308959.aspx))

Errors in docs/RESOURCES.md
⧖ http://geekswithblogs.net/BlackRabbitCoder/archive/2015/04/02/c.net-little-wonders-amp-little-pitfalls-the-complete-collection.aspx

✗ https://msdn.microsoft.com/en-us/library/bb308959.aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/bb308959.aspx))
⧖ http://geekswithblogs.net/BlackRabbitCoder/archive/2015/04/02/c.net-little-wonders-amp-little-pitfalls-the-complete-collection.aspx
📝 Summary

🔍 Total...........79
✅ Successful......77
⏳ Timeouts.........1
🔀 Redirected.......0
👻 Excluded.........0
🚫 Errors...........1

Errors in docs/RESOURCES.md
⧖ http://geekswithblogs.net/BlackRabbitCoder/archive/2015/04/02/c.net-little-wonders-amp-little-pitfalls-the-complete-collection.aspx

Errors in docs/ABOUT.md
✗ https://msdn.microsoft.com/en-us/library/bb308959.aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/bb308959.aspx))

✗ https://msdn.microsoft.com/en-us/library/bb308959.aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/bb308959.aspx))
⧖ http://geekswithblogs.net/BlackRabbitCoder/archive/2015/04/02/c.net-little-wonders-amp-little-pitfalls-the-complete-collection.aspx
📝 Summary

🔍 Total...........79
✅ Successful......77
⏳ Timeouts.........1
🔀 Redirected.......0
👻 Excluded.........0
🚫 Errors...........1

Errors in docs/ABOUT.md
✗ https://msdn.microsoft.com/en-us/library/bb308959.aspx (HTTP status client error (403 Forbidden) for url (https://msdn.microsoft.com/en-us/library/bb308959.aspx))

Errors in docs/RESOURCES.md
⧖ http://geekswithblogs.net/BlackRabbitCoder/archive/2015/04/02/c.net-little-wonders-amp-little-pitfalls-the-complete-collection.aspx

## Tracking

exercism/v3-launch#54