Removed the pdf files, only keep the source files

Signed-off-by: Olivier Gayot <duskcoder@gmail.com>
Update the Reame

Append my copyright after frigerri's one.
Add a workaround for whenever xelatex complains about Lato-Hairline.ttf

Signed-off-by: Olivier Gayot <duskcoder@gmail.com>