ci: luarocks release plumbing (#380)

* ci: luarocks release plumbing

* ci: luarocks release plumbing

.github/workflows/release.yml

@@ -0,0 +1,24 @@
+name: "release"
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+  workflow_dispatch:
+
+jobs:
+  luarocks-upload:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: LuaRocks Upload
+        uses: nvim-neorocks/luarocks-tag-release@v5
+        env:
+          LUAROCKS_API_KEY: ${{ secrets.LUAROCKS_API_KEY }}
+        with:
+          detailed_description: |
+            Coloured file icons for neovim. Dark and light background variants.
+          labels: |
+            neovim
+            plugin

README.md

@@ -26,6 +26,8 @@ or with [packer.nvim](https://github.com/wbthomason/packer.nvim)
 use 'nvim-tree/nvim-web-devicons'
 ```
 
+[![LuaRocks](https://img.shields.io/luarocks/v/nvim-tree/nvim-web-devicons?logo=lua&color=purple)](https://luarocks.org/modules/nvim-tree/nvim-web-devicons)
+
 ## Usage
 
 ### Variants