MediaWiki

WikiMedia Extensions Pygments clone into extensions/

cd /volume2/web_packages/mediawiki/extensions
git clone https://github.com/wikimedia/mediawiki-extensions-SyntaxHighlight_GeSHi.git

configure LocalSettings.php

vim /volume2/web_packages/mediawiki/LocalSettings.php

Add the following line:

wfLoadExtension( 'SyntaxHighlight_GeSHi' );

Run this line in terminal

php maintenance/update.php --quick