Added periods, removed errant response, added Attr desc

apiary.apib

@@ -1338,22 +1338,13 @@ Outputs the list of peers that were removed.
 
 # Group cat
 
-Show IPFS object data
+Show IPFS object data.
 
 ## cat [GET /cat{?arg}]
 Retrieves the object named by <ipfs-or-ipns-path> and outputs the data it contains.
 
 + Parameters
-    + arg (string, required) - The path to the IPFS object or objects to be outputted
-
-+ Response 200
-
-    + Headers
-
-        ```
-        Transfer-Encoding: chunked
-        X-Stream-Output: 1
-        ```
+    + arg (string, required) - The path to the IPFS object or objects to be outputted.
 
 + Request Without Arguments
 
@@ -1379,6 +1370,8 @@ Retrieves the object named by <ipfs-or-ipns-path> and outputs the data it contai
 
     + Attributes (string)
 
+        This is the raw content of the file.
+
     + Body
 
         ```
@@ -1463,6 +1456,7 @@ Retrieves the object named by <ipfs-or-ipns-path> and outputs the data it contai
           "Message": "this dag node is a directory",
           "Code": 0
         }
+        ```
 
 + Request With Valid Argument