Improved request-response example

and one more nit

Author: ralfhandl

versions/3.1.1.md

@@ -2100,17 +2100,21 @@ For example, given the following HTTP request:
 POST /subscribe/myevent?queryUrl=https://clientdomain.com/stillrunning HTTP/1.1
 Host: example.org
 Content-Type: application/json
-Content-Length: 187
+Content-Length: 188
 
 {
-  "failedUrl" : "https://clientdomain.com/failed",
-  "successUrls" : [
+  "failedUrl": "https://clientdomain.com/failed",
+  "successUrls": [
     "https://clientdomain.com/fast",
     "https://clientdomain.com/medium",
     "https://clientdomain.com/slow"
   ]
 }
+```
+
+resulting in:
 
+```http
 201 Created
 Location: https://example.org/subscription/1
 ```
@@ -3149,7 +3153,7 @@ components:
       $id: fully_generic_array
       type: array
       items:
-        $dynamicRef: "#generic-array"
+        $dynamicRef: '#generic-array'
       $defs:
         allowAll:
           $dynamicAnchor: generic-array