README.md in practice_terraforming-0.1.5 vs README.md in practice_terraforming-0.1.6

@@ -306,9 +306,10 @@
 
 ```bash
 practice_terraforming
 Commands:
   practice_terraforming help [COMMAND]  # Describe available commands or one specific command
+  practice_terraforming iamgpa          # Iam Group Policy Attachment
   practice_terraforming iampa           # Iam Policy Attachment
   practice_terraforming iamr            # Iam Role
   practice_terraforming iamrpa          # Iam Role Policy Attachment
   practice_terraforming iamupa          # Iam User Policy Attachment
   practice_terraforming s3              # S3