Read the Code of Conduct.
Before reporting a bug, please perform a search to see if the problem has already been reported. If it has, add a comment to the existing issue instead of opening a new one. Same for enhancements.
Please use similar coding conventions as the rest of the project. The basic rule to remember is to write code in the same style as the existing/surrounding code. Add a copyright line with the year, your name and your email address to the files you edited, unless you don’t want to.
You can also send me your patches via E-Mail, ideally using git format-patch or git send-email.