Update README.md

Author: paullynchmedia

README.md

@@ -22,7 +22,7 @@ We believe in making our journalism accessible to as many people as possible.  W
 ### Missing police evidence
 Thousands of criminal cases - including some of the most serious violent and sexual offences - are collapsing every year because of lost, damaged or missing evidence, the BBC Shared Data Unit reported in June, 2025.
 
-[Github repo]
+[Github repo](https://github.com/BBC-Data-Unit/police_evidence)
 
 ### QR code scams