updated readme for security plugins

Author: akkshajs

examples/connext_secure/README.md

@@ -7,5 +7,9 @@ builtin interoperability plugins.
 
 In this directory you will find some examples that illustrate the use of RTI
 Security Plugins.
+
+For information on how to install RTI Security Plugins, please
+refer to the [RTI Security Plugins Installation Guide](https://community.rti.com/static/documentation/connext-dds/current/doc/manuals/connext_dds_secure/installation_guide/index.htm)
+
 For more information about RTI Security Plugins, please
-refer to the [RTI Security Plugins User's Manual](https://community.rti.com/static/documentation/connext-dds/7.2.0/doc/manuals/connext_dds_secure/users_manual/index.html).
+refer to the [RTI Security Plugins User's Manual](https://community.rti.com/static/documentation/connext-dds/current/doc/manuals/connext_dds_secure/users_manual/index.html).