[boost] [gil] Committing some code changes

Hi there, I'm in the process to add some non-invasive code changes for boost::gil. Since this is my first time to commit changes to boost I would like to make sure I'm doing it right. The changes would be added to the trunk. Is that the right place? I have done the obvious steps on my local machine. And besides adding comments when checking in my changes what other steps do I have to do? Thanks, Christian