updated text in register section
bit better small logo of lafonderie
fixed *three days* typo in mobile version of text
Fix typo on "contribute" page
Fix text in "team"
Speakers : remove Celine Lazothes
Links open in new tab (twitter profiles of team)
s/Elf Pavlik/elf Pavlik/ ;)
fixed og: tags in fr.html
fixed og: tags
renamed sponsors to team
renamed sponsors to team in fr.html (grrr!)
Fix name speaker Mazzella