Update NEWS.md

Co-authored-by: Takafumi Arakaki <takafumi.a@gmail.com>

Author: N5N3

NEWS.md

@@ -96,7 +96,7 @@ Standard library changes
   arithmetic to error if the result may be wrapping. Or use a package such as SaferIntegers.jl when
   constructing the range. ([#40382])
 * TCP socket objects now expose `closewrite` functionality and support half-open mode usage ([#40783]).
-* `extrema` now supports `init` keyword argument ([#36265]).
+* `extrema` now supports `init` keyword argument ([#36265], [#43604]).
 * Intersect returns a result with the eltype of the type-promoted eltypes of the two inputs ([#41769]).
 * `Iterators.countfrom` now accepts any type that defines `+`. ([#37747])