GitCI: Generating commit messages for diffs

Idea

Make it possible to calculate commit messages for git diffs.

Procedure

In the note ([[a2e6f638>), I go over a paper in which a similar process is described. However, the commits generated don’t make much sense, and will need some language correction in order to be understandable.

We’ll probably need to use something similar to what Lewis explains in Sentence correction using Neural Networks