robot arm forward kinematics 2d
save after lecture
forward kinematics
inverse kinematics
Merge branch 'master' of git@github.com:DAInamite/programming-humanoid-robot-in-python.git

# By Yuan
# Via Yuan
* 'master' of git@github.com:DAInamite/programming-humanoid-robot-in-python.git:
  Update README.md
Merge branch 'kinematics'

* kinematics:
  inverse kinematics
  forward kinematics
  save after lecture
  robot arm forward kinematics 2d