[SE-0426] Add pitch/review links and start review

Author: allevato

proposals/0426-bitwise-copyable.md

@@ -4,6 +4,8 @@
 * Authors: [Kavon Farvardin](https://github.com/kavon), [Guillaume Lessard](https://github.com/glessard), [Nate Chandler](https://github.com/nate-chandler), [Tim Kientzle](https://github.com/tbkka)
 * Review Manager: [Tony Allevato](https://github.com/allevato)
 * Implementation: On `main` gated behind `-enable-experimental-feature BitwiseCopyable`
+* Status: **Active Review (March 6...20, 2024)**
+* Review: ([Pitch](https://forums.swift.org/t/pitch-bitwisecopyable-marker-protocol/69943)) ([Review](https://forums.swift.org/t/se-0426-bitwisecopyable/70479))
 
 <!-- *During the review process, add the following fields as needed:*