Instructables Basic Robot: https://www.instructables.com/id/Line-following-Robot-with-Arduino/?ALLSTEPS
Circuits Today Line Follow: https://www.circuitstoday.com/line-follower-robot-using-arduino

Code Documentation: https://www.pololu.com/docs/0J19/all
QTR-8 User's Guide: https://www.pololu.com/docs/pdf/0J12/QTR-8x.pdf
Servo Code: https://www.pololu.com/docs/0J57/8.a

Buy on Arduino: https://www.arduino.cc/en/Main/ArduinoBoardUno
Schematic: https://www.arduino.cc/en/uploads/Main/arduino-uno-schematic.pdf
U of Minn Guide: https://www.me.umn.edu/courses/me2011/arduino/arduinoGuide.pdf

Download and Install Arduino: https://www.arduino.cc/en/Main/Software
Download QTR Library: https://github.com/pololu/qtr-sensors-arduino (Download ZIP)
Extract the ZIP, and move the QTRSensors folder to your Ardunio "libraries" folder
Download Seeed Library: https://github.com/Seeed-Studio/SeeedMotorShieldV2 (Download ZIP) From Adruino IDE->Sketch->Include Library->Add .ZIP Library->Choose ZIP you just downloaded (Libraries guide: https://www.arduino.cc/en/Guide/Libraries)
Restart the Arduino IDE Download this code and open RobotCode159.ino, or copy the code into a blank Arduino file and compile
If you have a board connected to your computer, you can upload this code