Add more textual explanation in api doc

Added more textual explanation and tables for
downloading sample policies and preloaded policy types.
Also added sample curl commands for api calls.

Issue-ID: POLICY-1680
Change-Id: Ia98e37679ae8e632da9d1f7308e156f722648faf
Signed-off-by: Chenfei Gao <cgao@research.att.com>
diff --git a/docs/api/policies/vDNS.policy.guard.minmax.input.json b/docs/api/policies/vDNS.policy.guard.minmax.input.json
new file mode 100644
index 0000000..45a7d41
--- /dev/null
+++ b/docs/api/policies/vDNS.policy.guard.minmax.input.json
@@ -0,0 +1,13 @@
+{
+  "policy-id" : "guard.minmax.scaleout",
+  "content" : {
+        "actor": "SO",
+        "recipe": "scaleOut",
+        "targets": ".*",
+        "clname": "ControlLoop-vDNS-6f37f56d-a87d-4b85-b6a9-cc953cf779b3",
+        "min": "1",
+        "max": "5",
+        "guardActiveStart": "00:00:01-05:00",
+        "guardActiveEnd": "23:59:59-05:00"
+    }
+}
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