This adds an entry to the languages.json file for Bash language support, by way of the CodeMirror "shell" mode. (That mode seems mainly for Bash, even though it's called "shell".) It looks great!
Add Bash support, by way of the CodeMirror "shell" mode.
It looks great other than the syntax highlighting bug that appears twice in your screenshot, you mean :-D
(I still agree it's worth merging though)
OK, you got me! See codemirror/CodeMirror#1423.
Looks good. Merging. Looks like your change to CodeMirror will be in our next merge (probably at the start of Sprint 24).