update Druid Chart README doc and removes unnecessary lock file (#11945)

* update Druid Chart README doc and removes unnecessary lock file

* update Druid Chart README doc and removes unnecessary lock file

.gitignore

@@ -20,3 +20,4 @@ LICENSE.BINARY
 NOTICE.BINARY
 README.BINARY
 README
+*.lock

helm/druid/Chart.lock

@@ -1,27 +0,0 @@
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-dependencies:
-- name: zookeeper
-  repository: https://charts.helm.sh/incubator
-  version: 2.1.4
-- name: mysql
-  repository: https://charts.helm.sh/stable
-  version: 1.6.4
-- name: postgresql
-  repository: https://charts.helm.sh/stable
-  version: 8.6.4
-digest: sha256:fb2ab5eed4b4fc00eee5f23764209d7cb494a07161439ea28d85ed3741eaf7f7
-generated: "2021-05-22T23:07:19.829637+08:00"

helm/druid/README.md

@@ -21,24 +21,31 @@
 
 [Apache Druid](https://druid.apache.org/) is a high performance real-time analytics database.
 
+## Dependency Update
+
+Before you install the Druid Chart, update the dependencies :
+```bash
+helm dependency update helm/druid
+```
+
 ## Install Chart
 
 To install the Druid Chart into your Kubernetes cluster :
 
 ```bash
-helm install "druid" --namespace "druid" incubator/druid
+helm install druid helm/druid --namespace dev --create-namespace
 ```
 
 After installation succeeds, you can get a status of Chart
 
 ```bash
-helm status "druid"
+helm status druid -n dev 
 ```
 
 If you want to delete your Chart, use this command:
 
 ```bash
-helm delete --purge "druid"
+helm uninstall druid -n dev
 ```
 
 ### Helm ingresses