[Documentation]: Correct the formatting of reference

[dxtym]

Documentation Issue Description

I'm not sure if that's an issue, but I think the following line should be formatted as a hyperlink to the article about embeddings. Please, correct me if I'm wrong. Attaching the line to be revised:

The API calls to create the {ref}embeddings <what-is-an-embedding> in a VectorStoreIndex can be expensive in terms of time and money, so you will want to store them to avoid having to constantly re-index things.

If so, I believe the link should point to the following page. Thank you.

Documentation Link

https://docs.llamaindex.ai/en/stable/understanding/storing/storing/