chore: remove readme link from DA (#663)

Author: zikra-iqbal

ibm_catalog.json

@@ -388,7 +388,8 @@
               "key": "existing_mongodb_instance_crn"
             }
           ],
-          "terraform_version": "1.10.5"
+          "terraform_version": "1.10.5",
+          "ignore_readme": true
         },
         {
           "label": "Security-enforced",
@@ -663,7 +664,8 @@
               "key": "existing_mongodb_instance_crn"
             }
           ],
-          "terraform_version": "1.10.5"
+          "terraform_version": "1.10.5",
+          "ignore_readme": true
         }
       ]
     }