Create a gov only project with the API (#32)

* creating a project

Author: zach-carr

source/api.txt

@@ -54,6 +54,28 @@ See the Atlas Documentation
 - For a list of possible errors, see 
   :atlas:`Atlas API Error Codes </reference/api/api-errors/>`.
 
+Creating a Project
+------------------
+
+.. include:: /includes/considerations/gov-commercial-regions.rst
+
+By default, the |cloudgov-short| API designates new projects for 
+standard region usage.
+
+To use the API to create a project for government regions, include 
+the following in your ``POST`` request data:
+
+.. code-block:: json
+   :copyable: true
+
+   "regionUsageRestrictions" : "GOV_REGIONS_ONLY"
+
+.. tip:: |service| documentation
+
+   For detailed information on creating a project with the API, 
+   including an example request, see 
+   :atlas:`Create One Project </reference/api/project-create-one/>`.
+
 {+gov-considerations+}
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