Broken example links

[f2il-afisher]

https://github.com/RyanWangZf/PyTrial/blob/a0d056ef62dd4a83d56f8a3c3f8056990aa56156/docs/source/tutorials/drug_kg.rst?plain=1#L17

Thank you for creating this extensive package!

It seems like the docs linked here are out of date; it leads to a 404 error. Is there an updated link?