docs(wiki): added more rules and explanation on how to use the prompt in docforge wiki

docforge/__init__.py

@@ -546,6 +546,20 @@ Example:
 
 ---
 
+# Type parity (`.pyi` stubs and `py.typed`)
+
+Documented APIs ship matching type information:
+
+- Each `.py` module has a synchronized `.pyi` stub in the same package.
+- Packages expose a `py.typed` marker so type checkers (and consumers)
+  use the authored signatures instead of `Any`.
+- When signatures change, update the `.py` implementation and its `.pyi`
+  stub together.
+- Doc-forge documents the docstrings in `.py`; the `.pyi` stub is the
+  machine-consumable signature surface.
+
+---
+
 # Parsing guarantees
 
 GSDFC ensures doc-forge can deterministically extract: