diff --git a/assign4/README.md b/assign4/README.md
index ea87cf116be9f01799d45f3c98e3db40a62a1f96..e0ac4520eb6a82f182d1fd3a58a799f695dacb6f 100644
--- a/assign4/README.md
+++ b/assign4/README.md
@@ -87,5 +87,5 @@ that exports location info through bound variables.
 **Important**: Please avoid the usage of UIKit or any wrappers for UIKit views such as UIViewRepresentable. 
 Using such packages would result in an automatic 0 in the respective
 task. You should *not* use **MKMapView()**. Instead, use **Map()**.
-
+- Might look [here]() for polygons. I have *not* verified this, might cause your laptop to go up in a puff of smoke, work great, or fail to compile.
 
diff --git a/assign4/assign4.mp4 b/assign4/assign4.mp4
new file mode 100644
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Binary files /dev/null and b/assign4/assign4.mp4 differ