Update setup.cfg

Author: gotec

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = git2net
-version = 1.5.6
+version = 1.5.7
 author = Christoph Gote
 author_email = cgote@ethz.ch
 license = AGPL-3.0+
@@ -12,7 +12,7 @@ keywords =
     mining
     network
     analysis
-url = https://github.com/gotec/git2net
+url = https://gotec.github.io/git2net/
 long_description = file: README.md
 long_description_content_type = text/markdown
 classifiers =