fix utf-8 encoding issue, add embedding_model configuration

[yuekaizhang]

1. fix 'utf-8' encoding issue for *.co and *.yml: to better support examples using prompts with different languages
2. configure embedding model through config.yaml, such that we could use multilingual embedding model

[drazvan]

Thanks for this @yuekaizhang! Looks good 👍 . Could you please sign the commit and force-push the branch again? (https://github.com/NVIDIA/NeMo-Guardrails/blob/main/CONTRIBUTING.md#signing-your-work). If you're able to do this in the next few hours, we can merge it as part of the 0.3.0 release, which is today.

The only thing missing is a mention in the documentation in the Configuration Guide, but I'm happy to add that myself.

[yuekaizhang]

Thanks for this @yuekaizhang! Looks good 👍 . Could you please sign the commit and force-push the branch again? (https://github.com/NVIDIA/NeMo-Guardrails/blob/main/CONTRIBUTING.md#signing-your-work). If you're able to do this in the next few hours, we can merge it as part of the 0.3.0 release, which is today.

The only thing missing is a mention in the documentation in the Configuration Guide, but I'm happy to add that myself.

I am happy to finish that now. However, I have already tried git commit -s -m "". I was wondering how to fix. @drazvan

[yuekaizhang]

[drazvan]

You can checkout this guide from GitLab: https://docs.gitlab.com/ee/user/project/repository/gpg_signed_commits/. And make sure you add the generated GPG key to your GitHub account. To resign the commit, since there's only one, the easiest way is to make it again i.e. git reset HEAD~1 and the git commit -m "...". Make sure you run git config --global commit.gpgsign true beforehand so that all commits get signed automatically.

[yuekaizhang]

You can checkout this guide from GitLab: https://docs.gitlab.com/ee/user/project/repository/gpg_signed_commits/. And make sure you add the generated GPG key to your GitHub account. To resign the commit, since there's only one, the easiest way is to make it again i.e. git reset HEAD~1 and the git commit -m "...". Make sure you run git config --global commit.gpgsign true beforehand so that all commits get signed automatically.

Many thanks. Done.