Update src/reactpy/types.py

Co-authored-by: Mark Bakhit <archiethemonger@gmail.com>

Author: shawncrawley

src/reactpy/types.py

@@ -896,7 +896,7 @@ class JsonImportSource(TypedDict):
 
 
 class JavaScript(str):
-    """A simple way of marking JavaScript code to be executed client-side"""
+    """Simple subclass that flags a user's string in ReactPy VDOM attributes as executable JavaScript."""
 
     pass