Update .gitignore

ryanhill1 · web-flow · commit 5068e9a9301f · 2020-12-23T11:47:06.000-08:00
diff --git a/.gitignore b/.gitignore
@@ -127,3 +127,6 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+# Jupyter notebook checkpoints
+.ipynb_checkpoints
