GitLab

Rename installation.md to Installation.md to fix typo in index file.

Link OpenFold repo from the docs

The intro part taken from the main README (which makes a title on GitHub) obviously did not link to itself but now the repo is hard to find when reading the (great!) docs :)

Adds Documentation and minor quality of life fixes

Fix Colab by using OF commit from pl_upgrades

Duplicate expansion support

Fixed a small typo in permutation unit test docstring

Update multi-chain permutation and permutation unittest 

Fixed a small typo in permutation unit test docstring