find a way to keep tools web page in synk with appendix instructions

[bjornregnell]

factor out stuff and generate both html and tex for

• https://github.com/lunduniversity/introprog/blob/master/web/tools/tools.md
• https://github.com/lunduniversity/introprog/tree/master/compendium/postchapters

Could be a lot of work so this will have to wait until after the current course instance...

[bjornregnell]

This is low priority intill we have migrated the LTH web from Typo3 to Drupal, so that we know if it is possible to suck in markdown -> html from this place to the LTH web.