Checklist

I have read the contribution guidelines.
Unit tests have been added for any new or changed code, and the test suite passes. Note: Your request will likely not be merged without the appropriate tests.
"closes #XXXX" is in the body of the MR description to link the related issue, if applicable.

This MR adds missing roles for a couple of entries in "Algorithms" and "Optimizers" sections of the release notes.

DOC: Add missing roles to release notes