Update .gitignore

Author: domdfcoding

.gitignore

@@ -86,3 +86,10 @@ ipython_config.py
 Pipfile.lock
 .pyre/
 pathtype_demo.py
+addedin.py
+demo.py
+frozendict.py
+mutdef_plugin.py
+mutdef.py
+narrows_type.py
+count_demo.py

repo_helper.yml

@@ -71,6 +71,13 @@ tox_unmanaged:
 
 additional_ignore:
  - pathtype_demo.py
+ - addedin.py
+ - demo.py
+ - frozendict.py
+ - mutdef_plugin.py
+ - mutdef.py
+ - narrows_type.py
+ - count_demo.py
 
 tox_testenv_extras: all
 min_coverage: 95