docs: Fix NOT_STARTED state documentation in MigrationJob resource (#49)

* docs: Fix NOT_STARTED state documentation in MigrationJob resource

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packages/google-cloud-clouddms/protos/google/cloud/clouddms/v1/clouddms_resources.proto

@@ -390,7 +390,7 @@ message MigrationJob {
     // The migration job is being created.
     CREATING = 3;
 
-    // The migration job is created, not started and is fully editable.
+    // The migration job is created and not started.
     NOT_STARTED = 4;
 
     // The migration job is running.