docs: update classRegex, closes #824

Author: ineshbose

docs/content/2.tailwind/3.editor-support.md

@@ -26,7 +26,7 @@ When using strings of Tailwind classes, you can enable IntelliSense suggestions
 
 ```diff [.vscode/settings.json]
 // ...
-+ "tailwindCSS.experimental.classRegex": ["tw`(.*?)`", "tw\\('(.*?)'\\)"],
++ "tailwindCSS.experimental.classRegex": ["tw`(.*?)`", "tw\\('(.*?)'\\)", "tw\\(\\s*('(.*?)'|\"(.*?)\")\\s*\\)"],
 "files.associations": {
     "*.css": "tailwindcss"
 },