It seems that the links pointing to ct_core is wrong in the [overview page](https://ethz-adrl.github.io/ct/ct_doc/doc/html/index.html#ct_core_overview). It points to the unavailable https://ethz-adrl.github.io/ct/ct_doc/ct_core/doc/html/classct_1_1core_1_1PIDController.html The link https://ethz-adrl.github.io/ct/ct_core/doc/html/classct_1_1core_1_1PIDController.html, without `/ct_doc` is working