add includesite command
add \strong command, to replace \textbf
remove textbf and texit, closes #17
add source
Merge pull request #20 from hpcugent/feature/add-include-site-command

add includesite command
Merge pull request #22 from hpcugent/fix/emph-textit

Add \strong
Merge branch 'master' into fix/chapter-names