[Lizmap] upgrade instructions

[Paolo Cavallini]

Hi all,
why in
https://github.com/3liz/lizmap-web-client/blob/master/UPGRADE.md#replace-lizmap-files
it is suggested to replace lizmap files? IMHO it is better from all
viewpoints to have a new install, and switch it after checking that it
is working.
Am I missing something?
Cheers.
-- 
Paolo Cavallini
www.faunalia.eu - QGIS.org
training, support, development on QGIS, PostGIS and more