text: Title: [DOC] Binary Segmentation Estimator webpage missing
  Body: #### Describe the issue linked to the documentation
  
  The link from the estimator overview page ( https://www.sktime.net/en/stable/estimator_overview.html ) to Binary Segmentation is :
  https://www.sktime.net/en/stable/api_reference/auto_generated/sktime.annotation.bs.BinarySegmentation.html
  which is returning a 404 not found.
  
  
  