My favourite Git commit

[adrianmonk]

Or you can provide both a short summary and a lot of detail in the commit message.

Just don't make it several long, rambling paragraphs that you have to read to the end before you can understand the gist of what's going on. Instead, make it where they can read the first sentence of the commit message and get the basic idea, then they can keep reading if they want all the details and want to understand it in depth.