Change default version from 'latest' to latest actual release

[andrinr]

📚 Describe the documentation issue

For me it doesn't make sense that when you load the documentation page, you see a version which is based on a unreleased code ( I think its the nightly build)

For example: Graph Generators are already documented but not part of the 2.20 release.

Suggest a potential alternative/fix

• Add a disclaimer notifying readers that 'latest' refers to a version of pyg which is not yet released.
• And/Or: Default address should be the latest actual release, not the latest code version

[rusty1s]

I like the first idea of adding a disclaimer. Would that work for you?

[andrinr]

Yes that would work fine, thanks!

[rusty1s]

Added a note to the documentation, see https://pytorch-geometric.readthedocs.io/en/latest.