Explain how embeddings models are used

[dandv]

Validations

• I believe this is a way to improve. I'll try to join the Continue Discord for questions
• I'm not able to find an open issue that requests the same enhancement

Problem

https://docs.continue.dev/setup/select-model#embeddings mentioned embeddings models without more information.

Solution

That section could explain how embeddings models are used by Continue.

https://docs.continue.dev/walkthroughs/codebase-embeddings#embeddings-providers has a lot more information on that topic.

[sestinj]

We want to keep the select-model page pretty lean, but I definitely think it's an improvement to link to the other page: eb288fe