addition of link-with-image extension

extensions/link-with-image.md

@@ -0,0 +1,33 @@
+# Link with Image
+
+Support decorating link objects with an image attribute.[1] 
+
+
+1. Add an optional property on <code>link</code> objects: <code>image</code>
+2. The <code>image</code> property should refer to a valid image URI 
+
+```json
+{
+    "collection": {
+        "version": "1.0",
+        "href": "http://example.org/navigation",
+        "links": [
+            {
+                "rel": "prev",
+                "href": "http://example.org/prev",
+                "prompt": "Previous Item",
+                "image": "http://example.org/leftarrow.png"
+            },
+            {
+                "rel": "next",
+                "href": "http://example.org/next",
+                "prompt": "Next Item",
+                "image": "http://example.org/rightarrow.png"
+            }
+        ]
+    }
+}
+```
+
+### References
+1. [https://groups.google.com/forum/#!topic/collectionjson/CaZyXy-DfKw](https://groups.google.com/forum/#!topic/collectionjson/CaZyXy-DfKw)