docs: Document Yarn support in cachi2

[eskultety]

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• Commit messages are descriptive enough
• [n/a] Code coverage from testing does not decrease and new code is covered
• Docs updated (if applicable)
• Docs links in the code are still valid (if docs were updated)

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[brunoapimentel]

I think we also want to have a complete example, following what has been done on other package managers: https://github.com/containerbuildsystem/cachi2/blob/main/docs/usage.md#usage-examples.

I'm ok if this is done in a follow-up PR, though.

[eskultety]

I think we also want to have a complete example, following what has been done on other package managers: https://github.com/containerbuildsystem/cachi2/blob/main/docs/usage.md#usage-examples.

I'm ok if this is done in a follow-up PR, though.

Nope, that's a good point which needs to be addressed in this PR.

[eskultety]

I think we also want to have a complete example, following what has been done on other package managers: https://github.com/containerbuildsystem/cachi2/blob/main/docs/usage.md#usage-examples.

Added the change, however, @brunoapimentel I'd like to ask you to move your sample-nodejs-app Yarn modifications to the main cachito nodejs repo which my docs changes refer to. Also, I think you'll need to do a few cosmetic changes there so that the docs matches is, e.g. the Dockerfile.

[eskultety]

Marking this as a draft since the docs contains information and steps that assume Yarn to be enabled which it's not yet. This PR can still be reviewed in the meantime though, we should only postpone its merging until the very last moments before releasing support for Yarn v3.

[brunoapimentel]

I think we also want to have a complete example, following what has been done on other package managers: https://github.com/containerbuildsystem/cachi2/blob/main/docs/usage.md#usage-examples.

Added the change, however, @brunoapimentel I'd like to ask you to move your sample-nodejs-app Yarn modifications to the main cachito nodejs repo which my docs changes refer to. Also, I think you'll need to do a few cosmetic changes there so that the docs matches is, e.g. the Dockerfile.

👍 #425 (comment)

[eskultety]

Depends on #440

[brunoapimentel]

LGTM 🚀