Update template URL in customer.yaml (#245)

Author: goruha

.github/atmos/customer.yaml

@@ -5,7 +5,7 @@ docs:
       input:
         - "./README.yaml"
         - get_support: true
-      template: "https://raw.githubusercontent.com/cloudposse/.github/refs/heads/add-template-for-repos-without-marketing/README.md.simple.gotmpl"
+      template: "https://raw.githubusercontent.com/cloudposse/.github/refs/heads/main/README.md.simple.gotmpl"
       output: "./README.md"
       terraform:
         source: .