User documentation added

Change-Id: Ic5a14b247123a94fcfb1348b372d1603b6c26107
Issue-ID: DCAEGEN2-398
Signed-off-by: pwielebs <piotr.wielebski@nokia.com>
diff --git a/docs/sections/offeredapis.rst b/docs/sections/offeredapis.rst
index ace3cda..d805c5e 100644
--- a/docs/sections/offeredapis.rst
+++ b/docs/sections/offeredapis.rst
@@ -10,5 +10,6 @@
    apis/inventory.rst
    apis/ves.rst
    apis/dcaecdap.rst
+   apis/PRH.rst