Raspberry Pi 2b WiFi- Please Help

Hello all, I have recently aquired a raspberry pi 2b and I would like to hook it up to wifi, I am using a EOUP 802.11n usb wifi adapter. Sorry if this has been answered somewhere else already, Thanks!

sudo wget https://github.com/porjo/mt7601/raw/master/src/mcu/bin/MT7601.bin -O /lib/firmware/mt7601u.bin && sudo modprobe -r mt7601u && sudo modprobe mt7601u

Could you please explain what this does exactly? Thanks!