chore: Update README.md (#246)

Author: q2w

README.md

@@ -31,7 +31,7 @@ module "memorystore" {
   version = "~> 12.0"
 
   name           = "memorystore"
-  project        = "memorystore"
+  project_id     = "memorystore"
   memory_size_gb = "1"
   enable_apis    = "true"
 }