Update README

Author: ecmel

README.md

@@ -4,7 +4,8 @@ Missing CSS support for HTML documents.
 
 ## Features
 
-- Html class attribute completion.
+- HTML class attribute completion.
+- HTML id attribute completion.
 - Supports `<link rel="stylesheet">` and `<style></style>` tags.
 - Supports local style sheets form workspace.
 - Supports other remote style sheets, see below.
@@ -19,6 +20,16 @@ If it is not possible to specify remote styles with `<link rel="stylesheet">` ta
 ]
 ```
 
+## Local Style Sheets
+
+Workspace CSS parsing can be disabled for unwanted locations in VS Code settings:
+
+```json
+"css.ignoredFolders": [
+  "**/node_modules/**"
+]
+```
+
 ## Supported Languages
 
 Supported languages can be configured with the `css.enabledLanguages` configuration setting. By