Update, fix and improve some `README.md` files

[alvarobartt]

Description

This PR updates some README.md files with general improvements as listed below:

• Correct the containers/**/README.md files so that those use the tag of the published containers on Google Cloud instead of the names used for testing; also so that anyone can just copy and paste those, since the previous container URIs were not the actual ones.
• Updates the containers/container.yml file with the latest published containers (not sure if needed anymore cc @philschmid)
• Fixes both the curl command and the output for obtaining hardware recommendations on Google Cloud via https://huggingface.co/api/integrations/tgi/v1/provider/gcp/recommend
• Fixes a typo in both examples/vertex-ai/notebooks/deploy-gemma-*/vertex-notebook.ipynb notebooks (youself -> yourself)
• Updates the container listing in the README.md with the latest published containers.

[HuggingFaceDocBuilderDev]

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[alvarobartt]

LGTM. Do you think we should start looking into a "build_container.py" script which supports the container.yaml?

Yes @philschmid that's a great point! I'm already looking into how we can integrate that within the CI pipeline so that when we add new containers those are pushed to our registry on Google Cloud, and the test run using that container instead of the latest publicly available one!