diff --git a/assignments/src/MV3500Cohort2019JulySeptember/homework2/README.md b/assignments/src/MV3500Cohort2019JulySeptember/homework2/README.md
index 89e70e73c203523aa91ea47148c877d04512e188..2259a4fecdbb3c76a8196801ddc18293c7c92852 100644
--- a/assignments/src/MV3500Cohort2019JulySeptember/homework2/README.md
+++ b/assignments/src/MV3500Cohort2019JulySeptember/homework2/README.md
@@ -18,7 +18,7 @@ Approach:
   7. Something for your thesis!
 2. Include comments describing your modifications (aka Documentation).
 3. Include repeatable documentation of one or more sessions, including operation.
-4. Create a simple illustration of the communications exchange in a UML Sequence Diagram.
+4. Create a simple illustration of the communications exchange in a [UML Sequence Diagram](https://en.wikipedia.org/wiki/Sequence_diagram).
 
 Please see the [README.md](../../../README.md) in the parent
 [assignments](../../../../assignments) directory for detailed instructions.
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