Refrence also includes explaination and a solution

exposures/configs/git-config-nginxoffbyslash.yaml

@@ -5,7 +5,9 @@ info:
   severity: medium
   description: Nginx off-by-slash vulnerability exposes Git configuration.
   tags: config,exposure
-  reference: https://twitter.com/Random_Robbie/status/1262676628167110656
+  reference: |
+    - https://twitter.com/Random_Robbie/status/1262676628167110656
+    - https://github.com/PortSwigger/nginx-alias-traversal/blob/master/off-by-slash.py
 
 requests:
   - method: GET