Transfer lab 3 from latex to html blindly
Add deliverables list to block 3
List the course book as study material for lab 3
Forgot optional note in handin list of lab 3
Let's not keep task 3 block 3 optional. It will probably ease the later refactoring
Proofreading
Simplify the instructions for the refactoring exercise of lab 3
Merging 'master' into 'gh-pages'