Fixed Readme

Author: gkatzioura

GoogleStorageWagon/deploy/README.md

@@ -1,9 +1,6 @@
 By executing this file certain resources on google cloud are going to be created.
 
-A bucket in order to use as a repository
-
-A in order to read, write to the bucket and list the files available
-
-A role in order to attach it to your ec2-instance or ci/cd jobs
-
-A group to attach to the users in order to be able to execute requests
+Storage bucket to use as a repository
+IAM role with permissions to create, get, delete and list bucket objects
+Service account
+Service account bucket IAM binding