Helper documentation

doc/gettingstarted/howtorun.md

@@ -163,4 +163,11 @@ python3 -m <service>
 
 #### Start Your Testing with OpenCAPIF
 
-You can now test OpenCAPIF. Visit the Testing page to see how it works.
+You can now test OpenCAPIF.
\ No newline at end of file
+
+To test it, in the "Testing" tab you have three options:
+
+- [Test Plan](./testing/testplan/README.md): To see how to test the services and use them.
+- [Robot Framework](./testing/robotframework/README.md): To test the operation of all services or one in particular.
+- [Postman](./testing/postman/README.md): In order to carry out the complete OpenCAPIF flow, being invoker and provider
+