docs: v3.4.3 changelog

Author: kozistr

docs/changelogs/v3.4.3.md

@@ -4,7 +4,7 @@
 
 * Support `StableSPAM` optimizer. (#358, #359)
     * [How to Train in 4-Bit More Stably than 16-Bit Adam](https://arxiv.org/abs/2502.17055?)
-* Support `ScheduleFreeWrapper`. (#360)
+* Support `ScheduleFreeWrapper`. (#334, #360)
 
 ### Update