Read the docs deployment fix.

[benedekrozemberczki]

Summary

• [x] Code passes all tests
• [x] Unit tests provided for these changes
• [x] Documentation and docstrings added for these changes

Changes

• Moving back the requirements

[cthoyt]

I saw in the RTD build that torch-scatter really makes problems - apparently it requires torch to be installed already during its setup. This is an ongoing issue with the current packaging and installation that I think might be solved soon

[benedekrozemberczki]

Yeah. I am just banging my head against the wall :D

[cthoyt]

Sorry I changed this and made a problem for you :( I thought that the reproducible sphinx test was enough to assume RTD would work