Fixed typo in link to alan turing instituted md

Author: CiaraFlanagan

research-institutions/index.md

@@ -10,4 +10,4 @@ The following research institutions have an office which has the standing of an
 - [CERN](./cern.md) - Research institution
 - [Lero](./lero.md) - Research Center for a collection of universities
 - [Mass General Brigham](./mass-general-brigham.md) - Research Medical Center
-- [The Alan Turing Institute](./alan-research-turing-institute.md) - Research Institution
+- [The Alan Turing Institute](./the-alan-turing-institute.md) - Research Institution