docs: Add values.yaml files to filetypes for Helm (#32369)

Release Notes:

- N/A

docs/src/languages/helm.md

@@ -16,7 +16,10 @@ Enable Helm language for Helm files by editing your `.zed/settings.json` and add
       "**/templates/**/*.yaml",
       "**/templates/**/*.yml",
       "**/helmfile.d/**/*.yaml",
-      "**/helmfile.d/**/*.yml"
+      "**/helmfile.d/**/*.yml",
+      "**/values*.yaml"
     ]
   }
 ```
+
+This will also mark values.yaml files as the type helm, since helm-ls supports this.