https://github.com/pygments/pygments/blob/master/pygments/lexers/dotnet.py#L50

Github supports cs, c# and csharp as seen in the examples below. Other tooling also supports cs. One such tool is MarkdownSnippets which
can be used to copy snippets from source code into documents. The language used defaults from the file extension, which is reasonable for many languages.

Can a cs alias be added to the dotnet csharp lexer? It looks as simple as adding the alias to the line I linked to above. I didn't find tests for the aliases. Should I create a PR?

var s = "lala"

var s = "lala"

var s = "lala"