Sync stable [ci skip]

Signed-off-by: k8s-ci-robot <k8s-ci-robot@users.noreply.github.com>

stable/index.yaml

@@ -12317,6 +12317,28 @@ entries:
     - https://charts.helm.sh/stable/packages/bitcoind-0.1.0.tgz
     version: 0.1.0
   bookstack:
+  - apiVersion: v1
+    appVersion: 0.27.5
+    created: "2020-11-10T10:28:16.818833266Z"
+    dependencies:
+    - condition: mariadb.enabled
+      name: mariadb
+      repository: https://charts.helm.sh/stable
+      version: 7.3.14
+    description: BookStack is a simple, self-hosted, easy-to-use platform for organising
+      and storing information.
+    digest: 0f367cfb7358bc7199c1a31fc640eec8795406c9965bb451148dcbc2f8af0444
+    home: https://www.bookstackapp.com/
+    icon: https://github.com/BookStackApp/website/blob/master/static/images/logo.png
+    maintainers:
+    - email: bart@verwilst.be
+      name: verwilst
+    name: bookstack
+    sources:
+    - https://github.com/BookStackApp/BookStack
+    urls:
+    - https://charts.helm.sh/stable/packages/bookstack-1.2.3.tgz
+    version: 1.2.3
   - apiVersion: v1
     appVersion: 0.27.5
     created: "2020-10-30T17:07:12.134852525Z"
@@ -284277,4 +284299,4 @@ entries:
     urls:
     - https://charts.helm.sh/stable/packages/zetcd-0.1.0.tgz
     version: 0.1.0
-generated: "2020-11-10T10:17:52.890866812Z"
+generated: "2020-11-10T10:28:16.815315461Z"