Update doxec URL in README

Update the doxec repository URL to /frank/doxec.

README.md

@@ -59,7 +59,7 @@ shouldn't be duplications of code snippets, which will be out-of-sync eventually
 The repository is set up, such that
 each commit triggers continues integration tasks on the server, which parses the examples from
 the README and executes them with the
-[doxec](https://srv.sauerburger.com/esel/doxec) package. This means, you can
+[doxec](https://srv.sauerburger.com/frank/doxec) package. This means, you can
 download [ready-made scripts and
 plots](https://srv.sauerburger.com/esel/FP-python-examples/-/jobs/artifacts/master/download?job=doxec_test)
 produced by the continues integration task.