Use only .md files

[OStefan2001]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.73%. Comparing base (8370856) to head (910c427).

Files with missing lines	Patch %	Lines
src/App/src/Fixture/PostLoader.php	0.00%	5 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop     #206      +/-   ##
=============================================
+ Coverage      59.85%   60.73%   +0.87%     
- Complexity       541      558      +17     
=============================================
  Files             85       91       +6     
  Lines           2115     2185      +70     
=============================================
+ Hits            1266     1327      +61     
- Misses           849      858       +9     

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[arhimede]

i am approving it temporary only to see the results.
There are too many files in this PR

[bidi47]

there is quite a bit of mess in here. from one quick check, i found this:

• wrong markdown linting rules - no sentences on one row, no empty rows after headings
• 'MySQL' renamed to 'mysql'
• titles with no capitals
• config/autoload/doctrine.global.php rewritten as configautoloaddoctrine.global.php.
• 'resources' deleted from, apparently, everywhere

we need to somehow cherrypick the good stuff and redo the rest