Update NEWS

Author: darsnack

NEWS.md

@@ -1,7 +1,7 @@
 # Flux Release Notes
 
 ## v0.12.10
-* `Dropout` now supports [user-specified RNGs](https://github.com/FluxML/Flux.jl/pull/1838)
+* `Dropout`/`AlphaDropout` now supports [user-specified RNGs](https://github.com/FluxML/Flux.jl/pull/1838)
 
 ## v0.12.9
 * Fixed incorrect output and added GPU compatibility for [AlphaDropout](https://github.com/FluxML/Flux.jl/pull/1781).