correct two old references to nedbat on github

Author: nedbat

.github/workflows/tests.yml

@@ -1,5 +1,5 @@
 # Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
-# For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt
+# For details: https://github.com/coveragepy/django_coverage_plugin/blob/main/NOTICE.txt
 
 name: "Tests"
 

tox.ini

@@ -26,7 +26,7 @@ envlist =
 deps =
     cov6: coverage>=6.0,<7.0
     cov7: coverage>=7.0,<8.0
-    covtip: git+https://github.com/nedbat/coveragepy.git
+    covtip: git+https://github.com/coveragepy/coveragepy.git
     django52: Django>=5.2,<6.0
     django60: Django>=6.0,<7.0
     djangotip: git+https://github.com/django/django.git