Merge pull request #1830 from 18F/tock-1820-api-docs

Update API docs for timecards endpoint

Author: neilmb

api-docs/timecards.md

@@ -2,6 +2,8 @@
 ----
 To fetch a list of all submitted timecards and related information.
 
+Each entry in the response represents timecard data for a user, project, and reporting period.
+
 * **URL**
 
   /timecards.json
@@ -32,13 +34,19 @@ To fetch a list of all submitted timecards and related information.
         "user": "brackish.okun",
         "project_id": "30",
         "project_name": "Big Project",
+        "profit_loss_account": "FY15 Ministry of Coin Billable",
         "hours_spent": "16.80",
+        "project_allocation": "0.000",
         "start_date": "2014-10-01",
         "end_date": "2014-10-04",
         "billable": true,
         "agency": "Ministry of Coin",
         "flat_rate": false,
-        "notes": ""
+        "notes": "",
+        "billable_expectation": "0.80",
+        "employee_organization": "Keepers of the Keys",
+        "project_organization": "Keepers of the Keys",
+        "grade": 15
     },...
 ```
 
@@ -53,5 +61,9 @@ To fetch a list of all submitted timecards and related information.
 $ curl https://tock.18f.gov/api/timecards.json\?date\=2016-01-01\&user\=brackish.okun\&project\=1 -H 'Authorization: Token 08c25228c4be36f5e66f1148fb9d9bcabb9ef41e'
 ```
 
-* **Notes:** The sample call includes all optional parameters.
- 
+* **Notes:**
+  * The sample call includes all optional parameters.
+  * `hours_spent` and `project_allocation`
+    * For a given timecard entry in the response, at least one of hours and allocation should contain a zero value.
+    * An entry may contain a zero value for both hours and allocation. Tock does not prevent a user from including a project in a timecard but not reporting any time for it.
+