add german translation of csharp tutorial
fix yet-to-be-translated name
typo
them typographic mistakes
fix english comment and use non-american phone number
a plethora of smaller tweaks
another round of improvements and corrections
Add @ukom Polish Perl translation from PR https://github.com/adambard/learnxinyminutes-docs/pull/341
[groovy-pt] Translation of Groovy page to pt-br
Add Python3 simplified Chinese version.
Fix a typo, plus section headings
Finish most lines in section 1
Fix Vietnamese Git guide typo and update content
Dutch translation of the brainfuck tutorial
[python/de] Fix typo in url of German translation

My text editor apparently also fixed some incorrect trailing spaces and
tabs on empty lines
Revert "[python/de] Fix typo in url of German translation"

This reverts commit c44552b25840c742043aa64470f5cc3caaac4a5b.
[markdown/en] Fixed typo in language author

It’s “John Gruber”, not “Jhon Gruber”.
Bash French translation added
Added yaml-fr
first fixes