fixed the generator expection

src/ansible_module/__init__.py

@@ -1 +1 @@
-__version__ = "0.1.2"
+__version__ = "0.1.3"

src/ansible_module/update_doc.py

@@ -12,7 +12,7 @@ regex = re.compile("DOCUMENTATION *= *r?(?P<quote>\"{3}|'{3})(---)?.*?(?P=quote)
 
 def main():
     try:
-        modules = moduledir.iterdir()
+        modules = list(moduledir.iterdir())
     except:
         print("failed to find modules")
         return