Ajout Ninja a install.md

[Kabroc]

Ajout de l'installation de Ninja dans le INSTALL.md dans LekaOS/docs.

[ladislas]

merci pour la PR! je te propose qu'on ouvre à plus que Ninja.

j'ai rajouté pour les deps, mais on peut aussi mettre pour gcc, comme on avait eu du mal, ça permettra de s'en souvenir.

[ladislas]

Nouvelle review :)

[ladislas]

peut être rajouter après comment on les installe aussi si besoin.

Suggested change

	- OpenOCD : [Github Openocd](https://github.com/ntfreak/openocd)
	- STlink : [Github Stlink](https://github.com/stlink-org/stlink)
	- OpenOCD - [Github Openocd](https://github.com/ntfreak/openocd)
	- STlink - [Github Stlink](https://github.com/stlink-org/stlink)

[ladislas]

tu peux supprimer windows, on va ps s'embêter.

[codecov]

Codecov Report

Merging #165 (29dc99c) into develop (5b5d875) will not change coverage.
The diff coverage is n/a.

❗ Current head 29dc99c differs from pull request most recent head 50b65dc. Consider uploading reports for the commit 50b65dc to get more accurate results

@@            Coverage Diff            @@
##           develop      #165   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           15        15           
  Lines          215       215           
=========================================
  Hits           215       215           

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[codeclimate]

Code Climate has analyzed commit 29dc99c and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 100.0% (0.0% change).

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