CursorifyProvider is not being imported but used.

In the "Applying Custom Cursor" part of the documentation "CursorifyProvider" is not being imported, but used in the part of the code below. Fixed the imports.

Author: rohitjg13

docs/custom-cursor.md

@@ -47,7 +47,7 @@ export default EmojiCursor
 You can apply custom cursors as follows:
 
 ```tsx
-import { EmojiCursor } from '@cursorify/cursors'
+import { CursorifyProvider, EmojiCursor } from '@cursorify/cursors'
 
 const App = () => {
   return (