More detailed instructions on running the tool on Linux

[Robinlovelace]

Aimed at beginners struggling with the concise instructions at https://a-b-street.github.io/docs/user/index.html

[Robinlovelace]

To do all this from the command line (for version 0.3.5 and in the Downloads directories, change these settings in your script) enter the following:

cd ~/Downloads  
wget https://github.com/a-b-street/abstreet/releases/download/v0.3.5/abstreet_linux_v0_3_5.zip
unzip abstreet_linux_v0_3_5.zip
cd abstreet_linux_v0_3_5
./play_abstreet.sh

Any issues you have with this, let us know here!

[Robinlovelace]

Looking good!