Update README.md

Add steps required for changing the API data.

Author: Nicholas Thomson

README.md

@@ -18,6 +18,21 @@ $ grunt serve
 ```
 ---
 
+## Changing the API
+
+You should be using the faker for local development, not staging data.
+
+If you need to a make a change to the API, complete the following steps:
+ 1. Update webApiFaker to produce the type of output that you expect.
+ 1. In the same commit, update the JSON in the README to match what webApiFaker now returns
+ 1. Add a ticket to pivotal tracker assigned to the backend team and labeled with 'api' 
+ 1. Include a link to the README (perhaps the diff as well) with the version of the API you need
+ 1. When the API team finishes the change and marks the ticket as 'delivered' determine if the output matches your expectations (check this by running grunt serve:staging)
+ 1. If the output is as expected, accept the ticket
+ 1. The the output is incorrect, reject the ticket (possibly ping the person on the backend team as well)
+
+Once the API has been successfully updated, any code that relies on the new data can be merged to master.
+
 ## Endpoint Schemas
 
 ### Companies
@@ -94,4 +109,4 @@ $ grunt serve
                 ]
             }
         ]
-    }
+    }