Document link: https://docs.redhat.com/en/documentation/red_hat_enterprise_linux_for_real_time/10/html/installing_rhel_for_real_time/installing-rhel-for-real-time

Section number and name: 1.2. Installing RHEL for Real Time using dnf

Describe the issue: 

```
subscription-manager repos --enable rhel-10-for-x86_64,aarch64-rt-rpms

```

Returns that the repository does not exist, and I checked, I could not find it instead `rhel-10-for-x86_64-rt-rpms` works. 

Impact of this issue:

Suggestions for improvement: Probably the repository should be changed to `rhel-10-for-x86_64-rt-rpms`