Update README.md

Changes the filename of the Install guide
Merge pull request #714 from lucileneden/patch-1

Update README.md
Update INSTALL.md
Update INSTALL.md
Merge pull request #718 from nistormihai/master

LB-1534: Support NZZ on making the embed work
Quick fix for nzz desktop theme
Merge pull request #722 from nidzix/master

Quick fix for nzz desktop theme