chore: Auto-update chart README [skip ci]

charts/stable/bookstack/Chart.yaml

@@ -10,7 +10,7 @@ dependencies:
     version: 3.0.49
 description: "A simple, self-hosted, easy-to-use platform for organising and storing information."
 home: https://truecharts.org/docs/charts/stable/bookstack
-icon: https://truecharts.org/img/chart-icons/bookstack.png
+icon: https://truecharts.org/img/hotlink-ok/chart-icons/bookstack.png
 keywords:
   - bookstack
   - book
@@ -25,6 +25,7 @@ maintainers:
     url: https://truecharts.org
 name: bookstack
 sources:
+  - https://github.com/truecharts/charts/tree/master/charts/stable/bookstack
   - https://www.bookstackapp.com/
   - https://hub.docker.com/r/linuxserver/bookstack
 version: 3.0.29