feat(ci/cd): add stylua action (#12)

* feat(ci/cd): add stylua action

* docs: Add StyLua disclaimer to README

* fix(ci/cd-stylua): Secret started with GITHUB_

* fix(ci/cd-stylua): Missing name, on, jobs

.github/workflows/stylua.yml

@@ -0,0 +1,11 @@
+name: StyLua
+on: [push, pull_request]
+jobs:
+  StyLua check:
+    - uses: actions/checkout@v3
+    - uses: JohnnyMorganz/stylua-action@v3
+      with:
+        token: ${{ secrets.GH_TOKEN }}
+        version: v0.8.2 # NOTE: we recommend pinning to a specific version in case of formatting changes
+        # CLI arguments
+        args: --check .

README.md

@@ -142,6 +142,8 @@ errors: `luacheck lua`
 **Please use [Conventional Commits](https://www.conventionalcommits.org/) if you want to contribute.
 It makes everyones jobs easier.**
 
+**This project uses [StyLua](https://github.com/JohnnyMorganz/StyLua). Please format your code using StyLua for better readability**
+
 Pull requests are very welcome, feel free to open an issue to work on
 or message [me (@jiriks74)](https://discordapp.com/users/517810049360461837) on my
 [Discord server](https://discord.gg/cCq3qcB4jB)!