[SE-0429] Add link to review thread (#2362)

Author: xwu

proposals/0429-partial-consumption.md

@@ -5,7 +5,7 @@
 * Review Manager: [Xiaodi Wu](https://github.com/xwu)
 * Implementation: On `main` gated behind `-enable-experimental-feature MoveOnlyPartialConsumption`
 * Status: **Active Review (March 13...26, 2024)**
-* Review: ([pitch #1](https://forums.swift.org/t/request-for-feedback-partial-consumption-of-fields-of-noncopyable-types/65884)) ([pitch #2](https://forums.swift.org/t/pitch-piecewise-consumption-of-noncopyable-values/70045)) ([review]())
+* Review: ([pitch #1](https://forums.swift.org/t/request-for-feedback-partial-consumption-of-fields-of-noncopyable-types/65884)) ([pitch #2](https://forums.swift.org/t/pitch-piecewise-consumption-of-noncopyable-values/70045)) ([review](https://forums.swift.org/t/se-0429-partial-consumption-of-noncopyable-values/70675))
 <!-- * Upcoming Feature Flag: `MoveOnlyPartialConsumption` -->
 
 ## Introduction