Proper code block

Signed-off-by: Miek Gieben <miek@science.ru.nl>

content/howto/ssh.en.md

@@ -64,18 +64,22 @@ If you add the following lines to the file ‘config’ in the .ssh
 directory in your (local) home directory (maybe this file has to be
 created)
 
-`  CanonicalDomains science.ru.nl`\
-`  CanonicalizeFallbackLocal no`\
-`  CanonicalizeHostname yes`
+~~~
+CanonicalDomains science.ru.nl
+CanonicalizeFallbackLocal no
+CanonicalizeHostname yes
+~~~
 
 and the following line to .ssh/known\_hosts
 
-`  @cert-authority *.science.ru.nl ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHpJveyOrLKFRDsbiW/29OadbCbkmUaIXnWbhVwtytbpftAc7Stj2RYa8yBmgfdm82T/UBVu1tLbeeCYQI8UlCvbAALMx+I60ux+iEGVdDBgIOjeu6LuY12pksVlXy/nKc59+m3AdMXfGHA8cI/O8eFosQLJ+dck7SBcvTT4lPhEcSQxg==`
+~~~
+@cert-authority *.science.ru.nl ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHpJveyOrLKFRDsbiW/29OadbCbkmUaIXnWbhVwtytbpftAc7Stj2RYa8yBmgfdm82T/UBVu1tLbeeCYQI8UlCvbAALMx+I60ux+iEGVdDBgIOjeu6LuY12pksVlXy/nKc59+m3AdMXfGHA8cI/O8eFosQLJ+dck7SBcvTT4lPhEcSQxg==
+~~~
 
 then C&CZ-signed ssh keys of science.ru.nl hosts will be automatically
 accepted. The change to the ‘config’ file ensures that
 
-`  ssh lilo7`
+`ssh lilo7`
 
 will match with lilo7.science.ru.nl and the line in known\_hosts ensures
 that only for hostnames matching with \*.science.ru.nl ssh will check

content/howto/ssh.nl.md

@@ -64,19 +64,23 @@ onze servers getekend. Als je de volgende regels toevoegt aan het
 bestand ‘config’ in de .ssh directory in je (lokale) home directory (het
 kan zijn dat dit file nog niet bestaat)
 
-`  CanonicalDomains science.ru.nl`\
-`  CanonicalizeFallbackLocal no`\
-`  CanonicalizeHostname yes`
+~~~
+CanonicalDomains science.ru.nl
+CanonicalizeFallbackLocal no
+CanonicalizeHostname yes
+~~~
 
 en de volgende regel aan .ssh/known\_hosts
 
-`  @cert-authority *.science.ru.nl ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHpJveyOrLKFRDsbiW/29OadbCbkmUaIXnWbhVwtytbpftAc7Stj2RYa8yBmgfdm82T/UBVu1tLbeeCYQI8UlCvbAALMx+I60ux+iEGVdDBgIOjeu6LuY12pksVlXy/nKc59+m3AdMXfGHA8cI/O8eFosQLJ+dck7SBcvTT4lPhEcSQxg==`
+~~~
+@cert-authority *.science.ru.nl ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAHpJveyOrLKFRDsbiW/29OadbCbkmUaIXnWbhVwtytbpftAc7Stj2RYa8yBmgfdm82T/UBVu1tLbeeCYQI8UlCvbAALMx+I60ux+iEGVdDBgIOjeu6LuY12pksVlXy/nKc59+m3AdMXfGHA8cI/O8eFosQLJ+dck7SBcvTT4lPhEcSQxg==
+~~~
 
 dan zullen door C&CZ getekende ssh keys van science.ru.nl hosts
 automatisch geaccepteerd worden. De wijziging van het ‘config’ bestand
 zorgt ervoor dat
 
-`  ssh lilo7`
+`ssh lilo7`
 
 automatisch overeenkomt met lilo7.science.ru.nl (dus korte hostnaam
 volstaat) en de regel in known\_hosts zorgt ervoor dat ssh alleen voor