Joining Markdown tables

I’ve been working with Markdown tables a lot recently. The lovely markdown-mode for Emacs makes this easy and pleasant. However, I find myself treating the tables a little like CSV, and started wanting to run joins on tables often enough that I hacked together my first little Emacs package, markdown-join.

Here’s a demo:

The code is a single file, markdown-join.el. I’ve submitted it to MELPA.