git: 9front

ref: a1473ecf9fe13bbf8f9b5cb4f5fac9fc9f488bc4
dir: /sys/src/cmd/python/Doc/whatsnew/

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