String -> string in yaml

Author: annaira

swagger.yaml

@@ -216,15 +216,15 @@ definitions:
       branches:
         type: array
         items:
-          type: String
+          type: string
           example: "ZB Grimm-Zentrum"
   Availability:
     type: object
     properties:
       branches:
         type: array
         items:
-          type: String
+          type: string
           example: "ZB Grimm-Zentrum"
   RecordDetail:
     type: object