added extension for accepts property on link object

link-with-accepts.md

@@ -0,0 +1,39 @@
+# 'accepts' property for link
+
+Add an optional property,  <code>accepts</code>, to the <code>link</code> object whose purpose is to allow the server to indicate the representations available for the indicated resource. If present, the value MUST be a string and SHOULD contain a comma separated list of valid media types. 
+
+##example
+```json
+{
+	"collection": {
+		"version":"1.0",
+		"href":"/members/pending",
+		"items": {
+			{
+				"href":"/members/1",
+				"data": [
+					{"prompt":"name", "name":"full-name", "value":"john doe"},
+					{"prompt":"enrollment date", "name":"enrollment-date", "value":"2015-06-01"},
+				],
+				"links" : [
+					{"href":"/members/1/contract", "rel":"/rels/contract", "prompt":"contract", "name":"contract", "accepts":"application/pdf, text/html"}
+				]
+			},
+			{
+				"href":"/members/2",
+				"data": [
+					{"prompt":"name", "name":"full-name", "value":"homer"},
+					{"prompt":"enrollment date", "name":"enrollment-date", "value":"2015-05-29"},
+				],
+				"links" : [
+					{"href":"/members/2/contract", "rel":"/rels/contract", "prompt":"contract", "name":"contract", "accepts":"application/pdf, text/html"}
+				]
+			}
+		}
+	}
+}
+
+```
+
+##References
+[https://groups.google.com/forum/#!topic/collectionjson/C1GB4UC7_mc](https://groups.google.com/forum/#!topic/collectionjson/C1GB4UC7_mc)