[NonGNU ELPA] Geiser-Racket version 0.16

[ELPA update]

Version 0.16 of package Geiser-Racket has just been released in NonGNU ELPA.
You can now find it in M-x list-packages RET.

Geiser-Racket describes itself as:

  ============================
  Support for Racket in Geiser
  ============================

More at https://elpa.nongnu.org/nongnu/geiser-racket.html

## Summary:

  This package extends the `geiser' core package to support the

## Recent NEWS:

[Not provided 🙁]