Update static/images/blog/03_TUD-Matrix-User-Growth.png,...
Update static/images/blog/03_TUD-Matrix-User-Growth.png, static/images/blog/01_TUD-Matrix-Documentation.png, static/images/blog/02_TUD-Matrix-Doc-Github-Repo.png, static/images/blog/04_TWIM-2021-01-22.png, static/images/blog/2x2_TUD-Matrix-Doc-Github-Growth-TWIM.png files