gh-134584: Add another contributor to whats new 3.15 (GH-143107)

Add another contributor to whats new 3.15

Author: Fidget-Spinner

Doc/whatsnew/3.15.rst

@@ -938,8 +938,8 @@ code results in constants, the code can be simplified by the JIT.
 The JIT avoids :term:`reference count`\ s where possible. This generally
 reduces the cost of most operations in Python.
 
-(Contributed by Ken Jin, Donghee Na, Zheao Li, Savannah Ostrowski,
-Noam Cohen, Tomas Roun, PuQing in :gh:`134584`.)
+(Contributed by Ken Jin, Donghee Na, Zheao Li, Hai Zhu, Savannah Ostrowski,
+Noam Cohen, Tomas Roun, and PuQing in :gh:`134584`.)
 
 .. rubric:: Better machine code generation