Link to CONTRIBUTING.md for built-in extensions #54098

extensions/css-language-features/README.md

@@ -11,3 +11,4 @@ This extension provides rich language support to CSS/SCSS/LESS files.
 - extra information on hover
 - navigation to definition and references
 
+Please read the [CONTRIBUTING.md](https://github.com/Microsoft/vscode/blob/master/extensions/css-language-features/CONTRIBUTING.md) file to learn how to contribute to this extension.
\ No newline at end of file

extensions/emmet/README.md

@@ -6,7 +6,7 @@
 
 See [Emmet in Visual Studio Code](https://code.visualstudio.com/docs/editor/emmet)
 
-
+Please read the [CONTRIBUTING.md](https://github.com/Microsoft/vscode/blob/master/extensions/emmet/CONTRIBUTING.md) file to learn how to contribute to this extension.
 
 
 

extensions/html-language-features/README.md

@@ -12,4 +12,4 @@ This extension provides rich language support to HTML files.
 - navigation to definition and references
 - formatting
 
-
+Please read the [CONTRIBUTING.md](https://github.com/Microsoft/vscode/blob/master/extensions/html-language-features/CONTRIBUTING.md) file to learn how to contribute to this extension.