Add document for policy audit api's

Adding section for policy audit api's in pap.

Issue-ID: POLICY-3340
Change-Id: I33b572372a5279ef03bc48b62d524dfd15c49c28
Signed-off-by: Ram Krishna Verma <ram_krishna.verma@bell.ca>
diff --git a/docs/pap/pap.rst b/docs/pap/pap.rst
index 0f7c0c6..d3cbf8b 100644
--- a/docs/pap/pap.rst
+++ b/docs/pap/pap.rst
@@ -120,6 +120,7 @@
    "Policy Status", "Queries the status of all policies"
    "Policy deployment status", "Queries the status of all deployed policies"
    "PDP statistics", "Queries the statistics of PDPs"
+   "Policy Audit", "Queries the audit records of policies"
 
 1.2 DMaaP API
 -------------
@@ -369,6 +370,19 @@
 .. literalinclude:: response/pdp-statistics-pap-resp.json
     :language: json
 
+:download:`Download Policy Audit PAP API Swagger  <swagger/policy-audit-pap.json>`
+
+.. swaggerv2doc:: swagger/policy-audit-pap.json
+
+This operation allows the audit records of policies to be listed together.
+The result can be filtered based on pdp group name, policy name & version.
+Along with record count, from date & to date as query parameters.
+
+Here is a sample response:
+
+.. literalinclude:: response/policy-audit-pap-resp.json
+    :language: json
+
 3 Configuration
 =================