Adds the right mentor to the project

Author: dpshelio

_projects/2026/astropy/astropy_core_improvements.md

@@ -20,7 +20,7 @@ issues:
 mentors:
  - neutrinoceros
  - astrofrog
- - nstarkman
+ - nstarman
 # The programme under this project wish to run. At the moment only GSOC is available
 initiatives:
  - GSOC