added multiple checks for the accuracy

source of added checks https://docs.docker.com/registry/spec/api/

files/docker-registry.yaml

@@ -9,7 +9,16 @@ requests:
   - method: GET
     path:
       - "{{BaseURL}}/v2/_catalog"
+
+    redirects: true
+    max-redirects: 1      
+    matchers-condition: and
     matchers:
       - type: word
         words:
-          - "repositories"
+          - '"repositories":'
+
+      - type: word
+        words:
+          - "application/json"
+        part: header