chore: add internal/ to gitignore for private documentation

yibeichan · yibeichan · commit 35f43ee56bbb · 2025-07-27T13:53:16.000-04:00
diff --git a/.gitignore b/.gitignore
@@ -134,3 +134,6 @@ dmypy.json
 
 # Pycharm
 .idea/
+
+# Internal documentation
+internal/
