mock server explanation on robot framework documentation

doc/testing/robotframework/README.md

@@ -21,6 +21,11 @@ Results will be stored at <REPOSITORY_FOLDER>/results
 
 Please check parameters (include) under *Test Execution* at [Manual Build And Test Execution](#manual-build-and-test-execution).
 
+### Mock Server
+Some tests on Test Plans require mockserver. That mock server must be deployed and reachable by Robot Framework and CCF under test.
+
+If you want to launch only tests that not needed mockserver, just add "--exclude mockserver" parameter to robot execution.
+
 ## Manual Build And Test Execution
 
 * **Build Robot docker image**:

doc/testing/testplan/api_events_service/README.md

@@ -269,8 +269,8 @@ At this documentation you will have all information and related files and exampl
   * CAPIF subscriber is pre-authorised (has valid InvokerId or apfId from CAPIF Authority)
   * CAPIF provider is correctly registered and published APIs.
   * API Provider had a Service API Published on CAPIF
-  * Mock Server is up and running to receive requests.
-  * Mock Server is clean.
+  * **Mock Server is up and running to receive requests.**
+  * **Mock Server is clean.**
 
 **Information of Test**: