I don't think this is worth a pull request, so I'll open a ticket about it:

The forum thread link in the readme is malformed, instead of this

* Minecraft Forum Thread: [Link](www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1284614-grimoire-of-gaia-3-)

it should be

* Minecraft Forum Thread: [Link](https://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1284614-grimoire-of-gaia-3-)

so the github markdown recognizes the link as an "absolute" path. :)

Thanks! I cannot believe I forgot to try the link myself.