docs(url): Update docstring

Author: tony

src/libvcs/url/base.py

@@ -24,7 +24,7 @@ def is_valid(self, url: str, is_explicit: Optional[bool] = None) -> bool:
 
 @dataclasses.dataclass(repr=False)
 class Rule(SkipDefaultFieldsReprMixin):
-    """Structure for a rule"""
+    """A Rule represents an eligible pattern mapping to URL."""
 
     label: str
     """Computer readable name / ID"""