Update 0498-runtime-demangle.md (#3015)

Author: stephentyrone

proposals/0498-runtime-demangle.md

@@ -7,6 +7,9 @@
 * Implementation: [PR #84788](https://github.com/swiftlang/swift/pull/84788)
 * Review: 
     * Previous [pitch](https://forums.swift.org/t/demangle-function/25416/16)
+    * [(pitch)](https://forums.swift.org/t/pitch-expose-demangle-function-in-runtime-module/82605)
+      [(review)](https://forums.swift.org/t/se-0498-expose-demangle-function-in-runtime-module/83032)
+
 
 ## Introduction