Improve documentation

Author: amotl

doc/comparison.rst

@@ -63,9 +63,10 @@ invoking `systemd-nspawn`_ without using the ``--boot`` option.
 Notes
 *****
 
-There is also `CoreOS toolbox`_, `microos-toolbox`_ and `tlbx`_.
+There is also `Boombox`_, `CoreOS toolbox`_, `microos-toolbox`_ and `tlbx`_.
 
 
+.. _Boombox: https://github.com/anthr76/boombox
 .. _CoreOS toolbox: https://github.com/coreos/toolbox
 .. _Comparison with similar tools: https://github.com/cicerops/racker#comparison-with-similar-tools
 .. _Distrobox: https://github.com/89luca89/distrobox

doc/research/container-wars.rst

@@ -235,7 +235,8 @@ crun
 RHEL
 ====
 
-    The default container runtime in RHEL 8 is runc. The default container runtime in RHEL 9 is crun.
+    The default container runtime in RHEL 8 is ``runc``.
+    The default container runtime in RHEL 9 is ``crun``.
 
     -- https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9-beta/html/considerations_in_adopting_rhel_9/assembly_containers_considerations-in-adopting-rhel-9