text: Title: [DOC] Replace NOTES by REFERENCES in docstrings
  Body: ### Describe the issue linked to the documentation
  
  Noticed that some docstrings use NOTES instead of REFERENCES in docstrings, making the api doc not linking refs correctly
  
  ### Suggest a potential alternative/fix
  
  just should be replaced, i noticed it in some deep learners but would be good to do a check all over aeon at some point