Improve 5G RFsim README: link to F1+E1

ci-scripts/yaml_files/5g_rfsimulator/README.md

@@ -65,7 +65,8 @@ $ docker logout
 
 All the following commands **SHALL** be run from the `ci-scripts/yaml_files/5g_rfsimulator` folder for a deployment with monolithic gNB.
 
-For a deployment with the gNB split in CU and DU components, the following commands **SHALL** be run from the `ci-scripts/yaml_files/5g_f1_rfsimulator` folder. 
+For a deployment with the gNB split in CU and DU components, please refer to the `../5g_f1_rfsimulator` folder.
+For a deployment with the gNB split in CU-CP, CU-UP, and DU components, please refer to the ../5g_rfsimulator_e1` folder.
 
 ## 2.1. Deploy OAI 5G Core Network ##