Update contributors.yml

Add Regis Thomas
diff --git a/site/_data/contributors.yml b/site/_data/contributors.yml
index c5a486c..aadc63d 100644
--- a/site/_data/contributors.yml
+++ b/site/_data/contributors.yml
@@ -120,3 +120,9 @@
   apacheId: rstrickland
   githubId: stricklandrbls
   role: PMC
+
+- first: Regis
+  last: Thomas
+  apacheId: rthomas320
+  githubId: rthomas320
+  role: PMC