M #-: Fix CE rhel repo setup code blocks (#3153)

Author: dann1

source/installation_and_configuration/frontend_installation/opennebula_repository_configuration.rst

@@ -168,7 +168,7 @@ To add OpenNebula repository, execute the following as user ``root``:
 **RHEL 8, 9**
 
 .. prompt:: bash # auto
-   :substitutions:
+    :substitutions:
 
     # cat << "EOT" > /etc/yum.repos.d/opennebula.repo
     [opennebula]
@@ -184,7 +184,7 @@ To add OpenNebula repository, execute the following as user ``root``:
 **AlmaLinux 8, 9**
 
 .. prompt:: bash # auto
-   :substitutions:
+    :substitutions:
 
     # cat << "EOT" > /etc/yum.repos.d/opennebula.repo
     [opennebula]

source/installation_and_configuration/ha/vm_ha.rst

@@ -67,7 +67,7 @@ This process tries to connect to the host via SSH, synchronize the probes and st
 
 The following is a an example configuration
 
-.. code-block:: language
+.. code-block::
 
     Host *
     ServerAliveInterval 10