Added diffusers to conda-forge and updated README for installation instruction

[sugatoray]

Since adding a package to conda-forge cannot be done from this repository, it was taken care of by the following PR.

• Adding diffusers from PyPI conda-forge/staged-recipes#19751

This PR updates the README to add conda install instruction.

Closes #126

[sugatoray]

• Feedstock: https://github.com/conda-forge/diffusers-feedstock
• Conda: https://anaconda.org/conda-forge/diffusers

It is available on conda-forge now!

$ conda search -c conda-forge diffusers
Loading channels: done
# Name                       Version           Build  Channel             
diffusers                      0.1.2    pyhd8ed1ab_0  conda-forge 

[sugatoray]

cc: @StoneCypher @patrickvonplaten @patil-suraj

[natolambert]

(Accidentally ran the checks on my phone poking around l, though this looks like a useful addition) 🤦‍♂️

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[sugatoray]

Hi @natolambert,

I am not clear on if I have any actionable before this PR could be merged. Please let me know. Thank you.

[natolambert]

I think @patrickvonplaten will look this week, or I can look then too. It was a really big push before the initial release, but I think this should be merged in shortly :)

[patrickvonplaten]

Thanks a lot for your PR @sugatoray - @anton-l @patil-suraj can you maybe handle this? Also cc @LysandreJik

[anton-l]

Hi @sugatoray, sorry for the late reply! One request before we update the links: could you please add me and @patrickvonplaten to the maintainers list? That way we'll be able to trigger the conda package update right after we release a new version on PyPi (e.g. there's a 0.1.3 already). Thank you!

[sugatoray]

@anton-l Sure. Will add both of you as co-maintainers.

👉 Typically, there is a conda-forge bot that picks up new PyPI versions and pushes PR to the repository. There's also another bot that automerges when the conda-forge builds pass successfully.

👉 The only time you would need to manually intervene is when the listed dependencies on the conda-forge feedstock recipe are incomplete or need some manual tweaking/updating.

[anton-l]

Awesome, thank you! 🤗

[sugatoray]

This PR will add you as co-maintainers.

• add maintainers from upstream conda-forge/diffusers-feedstock#4

cc: @anton-l @patrickvonplaten