Mention Jinja2 in generator README
Mention Jinja2 in generator README

Ghabry/easyrpg-liblcf,EasyRPG/liblcf,carstene1ns/easyrpg-liblcf,EasyRPG/liblcf,Ghabry/easyrpg-liblcf,Ghabry/easyrpg-liblcf,carstene1ns/easyrpg-liblcf,EasyRPG/liblcf,EasyRPG/liblcf,Ghabry/easyrpg-liblcf,carstene1ns/easyrpg-liblcf