git: 9front

ref: f3dc7e55ab7f4b5f7c06d546ae59fc446b45bc6d
dir: /sys/src/cmd/python/Doc/whatsnew/

Makefile
whatsnew20.tex
whatsnew21.tex
whatsnew22.tex
whatsnew23.tex
whatsnew24.tex
whatsnew25.tex