Update ofUtils_functions.markdown

[Maeva-Calmettes]

added some description on launch browser

[arturoc]

Thanks for your contribution, the inlined descriptions shouldn't be overwritten though since those come from code. you can either contribute this chages in the main repo adding descriptions to the code commnets or add new descriptions in the __description__ section instead of __inlined_descriiption__ if it's a longer explanation with examples...