add short description and url to setup.cfg

Author: ilyes319

setup.cfg

@@ -1,8 +1,10 @@
 [metadata]
 name = mace-torch
 version = attr: mace.__version__
+short_description = MACE - Fast and accurate machine learning interatomic potentials with higher order equivariant message passing.
 long_description = file: README.md
 long_description_content_type = text/markdown
+url = https://github.com/ACEsuit/mace
 classifiers =
     Programming Language :: Python :: 3
     Operating System :: OS Independent