bug: Encapsulate all CLI input strings in `""`

[0xSage]

1. Example: https://cortex.jan.ai/docs/embeddings/
2. cortex embeddings hello world this command will run, but only pass "hello" in
3. Please correct to cortex embeddings "hello world", so string is parsed as one input token
4. Please correct it in other places
5. I made one round of fixes previously, but this has come back.

Suggestion: test the command as you are writing the docs to ensure it is the correct syntax.