Merge pull request #244 from stackhpc/promote-alex-welsh

Add Alex-Welsh to Release Train team

Author: markgoddard

terraform/github/terraform.tfvars.json

@@ -260,6 +260,7 @@
           "markgoddard"
         ],
         "members": [
+          "Alex-Welsh",
           "cityofships",
           "jackhodgkiss",
           "m-bull",