Some projects have incorrect capitalization of their language data

[aaronaxvig]

For example, gatsby/content/projects/2020-01-18-mx-puppet-discord.mdx has the language as Typescript when it should be TypeScript. This makes both variations show up in the picker on https://matrix.org/docs/projects/try-matrix-now

[aaronaxvig]

I'm currently working on fixing the offending project files, just wanted to have an issue to reference with a description of the issue.

[benparsons]

@aaronaxvig good find, thanks for looking into this

[jaller94]

Project with this issue: https://github.com/matrix-org/matrix.org/blob/bf05308e60eba659dc83608e320528d1fc012f66/gatsby/content/projects/clients/quadrix.mdx

[jaller94]

This causes languages to be separate filters on https://matrix.org/docs/projects/try-matrix-now/

An automatic check on CI would be preferable to prevent this issue from coming back in the future.