Updated Cover art (markdown)

Cover-art.md

@@ -1,5 +1,47 @@
 ### Retrieve cover art  
 **URI**: https://icarus-demo.com/api/v1/coverart/2  
 **Method**: Get  
-**Content type**: application/[png *or* jpeg]  
+**Content type**: application/json  
+**Authorization**: Bearer ``token``  
+```Json
+{
+    "id": 2,
+    "songTitle": "Living For The City"
+}
+```
+
+### Retrieve all cover art  
+**URI**: https://icarus-demo.com/api/v1/coverart  
+**Method**: Get  
+**Content type**: application/json
+**Authorization**: Bearer ``token``  
+```Json
+[
+    {
+        "id": 1,
+        "songTitle": "Honestly OK"
+    },
+    {
+        "id": 2,
+        "songTitle": "Living For The City"
+    },
+    {
+        "id": 3,
+        "songTitle": "Straighten Up and Fly Right"
+    },
+    {
+        "id": 4,
+        "songTitle": "Melancholy Madeline (Frankie Laine - Vocal)"
+    },
+    {
+        "id": 5,
+        "songTitle": "Got A Penny (Alternate Version)"
+    }
+]
+```
+
+### Download cover art  
+**URI**: https://icarus-demo.com/api/v1/coverart/download  
+**Method**: Get  
+**Content type**: image/*
 **Authorization**: Bearer ``token``