[MISC] Fixes attribution formatting

[ebetica]

Implemented all the comments here

Added Yann's name individually to all the files with this command

sed 's/^title:/lecturer: Yann LeCun\ntitle:/' **/week{01,02,03,04,06,07,08,01,11,14}/*-{1,2}.md -i

The only intended difference from the linked comment is that summary pages in different languages have a bar, as well as a translator attribution.

[Atcold]

We'll likely have to monitor this in the future, since translations are in progress, and it's likely we've missed a few files.

[Atcold]

What happened to week 09?

[Atcold]

Also, week 04 there was only a lab, no lecture. So, the lecturer is me! Haha.