Add Herb LSP extension to ruby devcontainer feature

Author: marcoroth

features/src/ruby/README.md

@@ -47,7 +47,8 @@ Installs Ruby and a version manager (mise or rbenv) along with the dependencies
 
 ### VS Code Extensions
 
-- `shopify.ruby-lsp`
+- [`shopify.ruby-lsp`](https://marketplace.visualstudio.com/items?itemName=Shopify.ruby-lsp)
+- [`marcoroth.herb-lsp`](https://marketplace.visualstudio.com/items?itemName=marcoroth.herb-lsp)
 
 ## OS Support
 

features/src/ruby/devcontainer-feature.json

@@ -8,7 +8,8 @@
     "customizations": {
         "vscode": {
             "extensions": [
-                "shopify.ruby-lsp"
+                "shopify.ruby-lsp",
+                "marcoroth.herb-lsp"
             ]
         }
     },