[release] Update doc and CI config for release
diff --git a/.asf.yaml b/.asf.yaml
index 0978f11..c1ce193 100644
--- a/.asf.yaml
+++ b/.asf.yaml
@@ -15,6 +15,7 @@
     release-1.2: {}
     release-1.3: {}
     release-1.4: {}
+    release-1.5: {}
 
 
 notifications:
diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index b38f5bc..35fd8a0 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -28,8 +28,8 @@
       matrix:
         branch:
           - main
-          - release-1.3
           - release-1.4
+          - release-1.5
     steps:
       - uses: actions/checkout@v3
         with:
@@ -41,8 +41,8 @@
           echo "flink_branch=${currentBranch}"
           echo "flink_branch=${currentBranch}" >> ${GITHUB_ENV}
           if [ "${currentBranch}" = "main" ]; then
-            echo "flink_alias=release-1.5" >> ${GITHUB_ENV}
-          elif [ "${currentBranch}" = "release-1.4" ]; then
+            echo "flink_alias=release-1.6" >> ${GITHUB_ENV}
+          elif [ "${currentBranch}" = "release-1.5" ]; then
             echo "flink_alias=stable" >> ${GITHUB_ENV}
           else
             echo "flink_alias=${currentBranch}" >> ${GITHUB_ENV}
diff --git a/docs/config.toml b/docs/config.toml
index 0d50431..e80146d 100644
--- a/docs/config.toml
+++ b/docs/config.toml
@@ -63,8 +63,8 @@
   ]
 
   PreviousDocs = [
-    ["1.4", "https://nightlies.apache.org/flink/flink-kubernetes-operator-docs-release-1.4"],
-    ["1.3", "https://nightlies.apache.org/flink/flink-kubernetes-operator-docs-release-1.3"]
+    ["1.5", "https://nightlies.apache.org/flink/flink-kubernetes-operator-docs-release-1.5"],
+    ["1.4", "https://nightlies.apache.org/flink/flink-kubernetes-operator-docs-release-1.4"]
   ]
 
 [markup]
diff --git a/docs/content/docs/operations/upgrade.md b/docs/content/docs/operations/upgrade.md
index 2976c40..3b570a3 100644
--- a/docs/content/docs/operations/upgrade.md
+++ b/docs/content/docs/operations/upgrade.md
@@ -114,7 +114,7 @@
     ```sh
     kubectl patch flinkdeployment/basic-checkpoint-ha-example --type=merge -p '{"spec": {"job": {"state": "suspended", "upgradeMode": "savepoint"}}}'
     ```
-    Verify `deploy/basic-checkpoint-ha-example` has terminated and `flinkdeployment/basic-checkpoint-ha-example` has the Last Savepoint Location similar to `file:/flink-data/savepoints/savepoint-000000-aec3dd08e76d/_metadata`. This file will used to restore the job. See [stateful and stateless application upgrade]({{< ref "docs/custom-resource/job-management/#stateful-and-stateless-application-upgrades" >}})  for more detail.
+    Verify `deploy/basic-checkpoint-ha-example` has terminated and `flinkdeployment/basic-checkpoint-ha-example` has the Last Savepoint Location similar to `file:/flink-data/savepoints/savepoint-000000-aec3dd08e76d/_metadata`. This file will used to restore the job. See [stateful and stateless application upgrade]({{< ref "docs/custom-resource/job-management" >}})  for more detail.
 
 2. Delete the job:
    ```sh