* add build gcn tutorial

* add dgl to docker file

* add dgl to docker file

* Apply suggestions from code review

Co-Authored-By: 雾雨魔理沙 <lolisa@marisa.moe>

* add dgl to docker file

* rerun checks

* Revert "add build gcn tutorial"

This reverts commit dbe8b5f0e02a13fdd586a9faa58fd1326653afb0.

* resolve git issue

* resolve git issue

* resolve git issue

* apply marisa's comment