Updated Request Matching (markdown)

Request-Matching.md

@@ -570,4 +570,40 @@ server
    .RespondWith(Response.Create()
              .WithStatusCode(HttpStatusCode.Unauthorized)
              .WithBody(@"{ ""result"": ""api-key missing""}"));
+```
+
+A JSON Mapping example looks like:
+``` json
+{
+  "Guid": "29971ff8-4adb-4ec7-8b7d-a2ce6e5ca630",
+  "Request": {
+    "Path": {
+      "Matchers": [
+        {
+          "Name": "WildcardMatcher",
+          "Pattern": "/doesnot-need-a-key"
+        }
+      ]
+    },
+    "Headers": [
+      {
+        "Name": "api-key",
+        "Matchers": [
+          {
+            "Name": "WildcardMatcher",
+            "Pattern": "*",
+            "IgnoreCase": true,
+            "RejectOnMatch": true
+          }
+        ]
+      }
+    ]
+  },
+  "Response": {
+    "StatusCode": 401,
+    "BodyDestination": "SameAsSource",
+    "Body": "{ \"result\": \"api-key missing\"}",
+    "Headers": {}
+  }
+}
 ```