Update module source to highlight that it's relative

Co-Authored-By: autero1 <[email protected]>

main.tf

@@ -20,7 +20,7 @@ module "static_site" {
   # When using these modules in your own templates, you will need to use a Git URL with a ref attribute that pins you
   # to a specific version of the modules, such as the following example:
   # source = "git::[email protected]:gruntwork-io/terraform-google-static-assets.git//modules/cloud-storage-static-website?ref=v0.1.0"
-  source = "modules/cloud-storage-static-website"
+  source = "./modules/cloud-storage-static-website"
 
   project = "${var.project}"