Suggestted addition to dev.minetest.net/Installing_Mods

Adding mods using Git:
Mods stored in repository databases, such as github, can be installed and managed through git.

to install a new mod using git from the terminal, open the mods directory and use:

git clone <url of source>

To update an existing mod from the command line, navigate into the mod's directory and use:

git pull origin