Download one of the images and flash it to a microSD, using win32diskimager or Rufus on Windows or, on Linux:

sudo dd bs=4M if=image.img of=/dev/mmcblk0

Where mmcblk0 is the output of lsblk indicating your microSD device

Insert the card and power the Raspberry Pi. In 2-3 minutes you should see the newly created coderbot network. Once connected, you have SSH access and the web application on port 8080 (coderbot.local:8080).