Fix rest api doc for creating changes

* Adds a / onto the end of /changes

* The status is 201 instead of 200 for successful creating of changes

Change-Id: I0b0241116cd5d93ff5847e291563369dd18dd63d

Documentation/rest-api-changes.txt

diff --git a/Documentation/rest-api-changes.txt b/Documentation/rest-api-changes.txt
index 69afaa5..a3783dd 100644
--- a/Documentation/rest-api-changes.txt
+++ b/Documentation/rest-api-changes.txt
@@ -18,7 +18,7 @@
 
 .Request
 ----
-  POST /changes HTTP/1.0
+  POST /changes/ HTTP/1.0
   Content-Type: application/json; charset=UTF-8
 
   {
@@ -35,7 +35,7 @@
 
 .Response
 ----
-  HTTP/1.1 200 OK
+  HTTP/1.1 201 OK
   Content-Disposition: attachment
   Content-Type: application/json; charset=UTF-8