GitLab

* add dist tutorial

* add predictor in dist prediction

* refine after rendering

* change links

* Update 2_link_prediction.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Quan (Andy) Gan <coin2028@hotmail.com>
Co-authored-by: Rhett Ying <85214957+Rhett-Ying@users.noreply.github.com>
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>