[Cin] Addition of Cinelerra-GG to the French Wikipedia page

[Pierre autourduglobe]

I have added information about Cinelerra-GG to Wikipedia's 
French-language Cinelerra page.

Unfortunately I am not familiar with Wikipedia's procedures and my 
attempt to create a new information box by copying Cinelerra-HV's as a 
model did not give good results...

If someone masters these procedures under Wikipedia, a small adjustment 
of the imperfect work I did might be useful...

https://fr.wikipedia.org/wiki/Cinelerra

Pierre