Add docs for tools package & update main apex-pdp

Change-Id: I2990157eb7bae51f7d38a652fd8dd488b7287cea
Signed-off-by: Dinh Danh Le <dinh.danh.le@ericsson.com>
Issue-ID: POLICY-867
diff --git a/tools/simple-wsclient/src/site/asciidoc/run-echo.adoc b/tools/simple-wsclient/src/site/asciidoc/run-echo.adoc
new file mode 100644
index 0000000..d8091c1
--- /dev/null
+++ b/tools/simple-wsclient/src/site/asciidoc/run-echo.adoc
@@ -0,0 +1,14 @@
+//
+// ============LICENSE_START=======================================================
+//  Copyright (C) 2016-2018 Ericsson. All rights reserved.
+// ================================================================================
+// This file is licensed under the CREATIVE COMMONS ATTRIBUTION 4.0 INTERNATIONAL LICENSE
+// Full license text at https://creativecommons.org/licenses/by/4.0/legalcode
+// 
+// SPDX-License-Identifier: CC-BY-4.0
+// ============LICENSE_END=========================================================
+//
+// @author Sven van der Meer (sven.van.der.meer@ericsson.com)
+//
+
+include::{adsite-tools-wsclients-dir}/site-docs/adoc/fragments/run-echo.adoc[]