Add article about resource optimization

[defagos]

Description

This PR adds an article about resource optimization, addressing recent questions we received from our fellow SRF colleagues.

Changes made

• Add optimization article and related resources.
• Reference documentation entry points broadly (except in entry points themselves).

Checklist

• [x] APIs have been properly documented (if relevant).
• [x] The documentation has been updated (if relevant).
• [x] New unit tests have been written (if relevant).
• [x] The demo has been updated (if relevant).