Code style check: check the syntax of markdown files #12813

Job	Run time
Code style check / Code style check	6s
MSVC / MSVC (SDL2 x86)	4m 32s
MSVC / MSVC (SDL2 x64)	4m 44s
IWYU / IWYU	3m 9s
SonarCloud Analyzer / SonarCloud Analyzer	0s
CodeChecker / CodeChecker	31m 25s
CMake / CMake (Windows SDL2)	5m 5s
Android / Android	9m 27s
Make / Make (Linux x86-64 SDL2 Release)	2m 53s
CMake / CMake (Linux SDL2)	2m 10s
Make / Make (Linux x86-64 SDL2 Debug)	3m 15s
CMake / CMake (macOS SDL2)	1m 51s
Make / Make (Linux ARM64 SDL2 Release)	4m 18s
Make / Make (PS Vita)	8m 59s
CMake / CMake (macOS SDL2 App Bundle)	1m 39s
Make / Make (Nintendo Switch)	3m 7s
Make / Make (Linux ARM64 SDL2 Debug)	5m 5s
Make / Make (macOS SDL2)	2m 27s
Make / Make (macOS SDL2 App Bundle)	2m 12s
	1h 36m 24s

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