Update opensign.yaml

docs/docs/API-docs/v1.1/opensign.yaml

@@ -31,6 +31,9 @@ externalDocs:
   description: Find out more about OpenSign
   url: http://docs.opensignlabs.com
 servers:
+# Added by API Auto Mocking Plugin
+- description: SwaggerHub API Auto Mocking
+  url: https://virtserver.swaggerhub.com/PrafullNavkar/open/1.0.0
 - url: https://sandbox.opensignlabs.com/api/v1.1
 - url: https://app.opensignlabs.com/api/v1.1
 - url: https://eu-app.opensignlabs.com/api/v1.1
@@ -1752,7 +1755,6 @@ paths:
           "default": "11-05-2025",
           "min_date": "",
           "max_date": "",
-          "readonly": false,
           "signing_date": false
         }
         ```