Add a description in pyproject.toml for pypi

Author: OleJoik

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "oidc-auth-client"
 version = "0.0.0"
-description = "Add your description here"
+description = "Pure python implementation of an OIDC client"
 readme = "README.md"
 authors = [
     { name = "Ole-Jakob Olsen", email = "ole.jakob.olsen@ngi.no" }