docs: Fix formatting in fedora.rst
Fix rst formatting in fedora.rst so that the commands look correctly
on the web.
@@ -64,10 +64,10 @@ The command below will create a temporary SPEC file::
And to install specific dependencies, use the corresponding tool below.
For some of the dependencies on RHEL you may need to add two additional
-repositories to help yum-builddep.
+repositories to help yum-builddep, e.g.::
-subscription-manager repos --enable=rhel-7-server-extras-rpms
-subscription-manager repos --enable=rhel-7-server-optional-rpms
+ $ subscription-manager repos --enable=rhel-7-server-extras-rpms
+ $ subscription-manager repos --enable=rhel-7-server-optional-rpms
DNF::
