Update pystiche URL

Author: subramen

_ecosystem/pystiche

@@ -2,7 +2,7 @@
 layout: ecosystem_detail
 title: pystiche
 summary: pystiche is a framework for Neural Style Transfer (NST) built upon PyTorch.
-link: https://pystiche.readthedocs.io/en/latest/getting_started/installation.html
+link: https://pystiche.org
 summary-home: pystiche is a framework for Neural Style Transfer (NST) built upon PyTorch.
 featured-home: false
 github-id: pystiche/pystiche