Fix dead links and add resource YAMLTutorial.md

[cyr1l0u]

Replace dead link https://docs.saltstack.com/en/latest/topics/yaml/ width https://docs.saltproject.io/en/latest/topics/yaml/
Remove dead link http://jessenoller.com/blog/2009/04/13/yaml-aint-markup-language-completely-different
Add YAML resource YAMLine.com

Quick checklist:

• Description of PR explains the context of change
• Unit tests cover the change, no broken tests
• No static analysis warnings (Codacy etc.)
• Documentation update ('available in the unstable snapshot' warning if necessary)
• Changes file inside site/dat/docs/changes directory, one-line note of change inside

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.85%. Comparing base (6783bc7) to head (8902079).
⚠️ Report is 145 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1876      +/-   ##
==========================================
- Coverage   89.85%   89.85%   -0.00%     
==========================================
  Files          71       71              
  Lines       19591    19591              
==========================================
- Hits        17602    17601       -1     
- Misses       1989     1990       +1     

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