Update CONTRIBUTIONS.md (#311)

GibbsConsulting · web-flow · commit 4d2a4c6e6d9d · 2021-01-23T19:35:10.000-08:00
diff --git a/CONTRIBUTIONS.md b/CONTRIBUTIONS.md
@@ -39,3 +39,6 @@ Thanks to the following people:
 [CaseGuide](https://github.com/CaseGuide)
 
 [manish-podugu](https://github.com/manish-podugu)
+
+[sdementen](https://github.com/sdementen)
+
