Add Alex and Matt C to Ansible team in GitHub

Author: Alex-Welsh

terraform/github/terraform.tfvars.json

@@ -118,6 +118,7 @@
           "priteau"
         ],
         "members": [
+          "Alex-Welsh",
           "bbezak",
           "cityofships",
           "dougszumski",
@@ -128,6 +129,7 @@
           "JohnGarbutt",
           "jovial",
           "m-bull",
+          "motehue",
           "sjpb",
           "stackhpc-ci"
         ]