Release riscv-isa-release-704d8a6-2024-04-29

This release was created by: aswaterman
Release of RISC-V ISA, built from commit 704d8a6, is now available.

What's Changed

• Add marchid for rrv32 by @SolraBizna in #1270
• Update smcdeleg.adoc by @bcstrongx in #1375

New Contributors

• @SolraBizna made their first contribution in #1270

Full Changelog: riscv-isa-release-0965a03-2024-04-29...riscv-isa-release-704d8a6-2024-04-29