badge and coverage html

Author: pancetta

.coveragerc

@@ -26,4 +26,4 @@ exclude_lines =
     __author__*
 
 [html]
-directory = docs/build/test_coverage
+directory = docs/build/html/test_coverage

pySDC/tests/README.rst

@@ -1,7 +1,8 @@
 Most of the code is supported by tests, mainly realized by using the tutorial as the test routines with clearly defined results. Also, projects are accompanied by tests.
 
-Travis-CI reports: |badge|, test coverage results can be found `here <test_coverage/index.html>`_.
+Github Action reports: |badge|, test coverage results can be found `here <test_coverage/index.html>`_.
 
 
-.. |badge| image:: https://travis-ci.org/Parallel-in-Time/pySDC.svg?branch=master
-    :target: https://travis-ci.org/Parallel-in-Time/pySDC
+.. |badge| image:: https://github.com/Parallel-in-Time/pySDC/actions/workflows/ci_pipeline.yml/badge.svg
+    :target: https://github.com/Parallel-in-Time/pySDC/actions/workflows/ci_pipeline.yml
+