updated notes

src/rhcsa.md

@@ -693,3 +693,10 @@ sudo dnf provides /bin/bash # Display the package that provides the /bin/bash co
 sudo dnf deplist httpd # Display the dependencies of the httpd package
 ```
 
+### modify the .repo file to skip the GPG check
+```bash
+sudo nano /etc/yum.repos.d/rhel.repo
+
+# Add the following line to the rhel.repo file:
+gpgcheck=0
+```