added missing link for aeon-neuro (#1299)

docs/mentoring.md

@@ -179,7 +179,7 @@ used to detect epilepsy and to control decvices such as mice. There is a huge bo
 of work on analysing and learning from EEG, but there is a wide disparity of
 tools, practices and systems used. This project will help members of the `aeon`
 team who are currently researching techniques for EEG classification [1] and
-developing an aeon sister toolkit, ``aeon-neuro`` [LINK]. We will work together to
+developing an aeon sister toolkit, ``aeon-neuro`` [LINK](https://github.com/aeon-toolkit/aeon-neuro). We will work together to
 improve the structure and documentation for aeon-neuro, help integrate the
 toolkit with existing EEG toolkits such as NM [2], provide interfaces to standard data
 formats such as BIDS [3] and help develop and assess a range of EEG classification