Note for debian & Ubuntu users for setuptools

On debian and Ubuntu environments the setuptools are installed in $VENV/local/bin instead of $VENV/bin

This hint should give those users a workaround, so they are still able to use the commands in the tutorial without modifying each.

see https://github.com/diablorosso/pyramid/commit/71eb5871ef67c0657d7124d65b9a528d3bec5585 for details