fixes link in minutes

Author: clausmullie

organization/general-assemblies/minutes-28-06-2021.md

@@ -32,7 +32,7 @@ Alongside this, we would like this general assembly to have a program for a wide
 
 ## 3. Policy plan 2022-2026
 
-The board of directors would like to invite the members to work with them on the updated policy plan for 2022-2026, which will succeed [our policy plan 2019-2022](../policy-plan.md).
+The board of directors would like to invite the members to work with them on the updated policy plan for 2022-2026, which will succeed [our policy plan 2019-2022](../policy-plans/index.md).
 
 * *Eric will lead a working group to create the policy plan. Ben and Boris offered to support.*