Updated Admin API Reference (markdown)

Admin-API-Reference.md

@@ -171,6 +171,33 @@ Example request:
   }
 ```
 
+_Note_ : It's also possible to pre-load Mappings. This can be done by putting a file named `{guid}.json` in the `__admin\mapping` directory.
+
+Example : "11111110-a633-40e8-a244-5cb80bc0ab66.json"
+```json
+{
+    "Request": {
+        "Path": {
+            "Matchers": [
+                {
+                    "Name": "WildcardMatcher",
+                    "Pattern": "/static/mapping"
+                }
+            ]
+        },
+        "Methods": [
+            "get"
+        ]
+    },
+    "Response": {
+        "BodyAsJson": { "body": "static mapping" },
+        "Headers": {
+            "Content-Type": "application/json"
+        }
+    }
+}
+```
+
 ### `DELETE /__admin/mappings`
 Delete all stub mappings.