Here's what it currently says:

The current iteration of Botania for 1.10 is made possible thanks to the massive help by the part of williewillus, who ported the mod through 1.8, 1.9 and 1.10, so go buy him a beer or something, I dunno, he's pretty cool.

My suggestion:

The current iteration of Botania for Minecraft 1.15 is made possible thanks to the massive help by the part of williewillus, who ported the mod through 1.8, 1.9, 1.10, 1.11, 1.12, 1.13, 1.14, and 1.15 so go buy him a beer or support him on Patreon, he's pretty cool.