[KYUUBI #6440] Fix casing in kubectl commands for serviceaccount creation
# :mag: Description
## Issue References 🔗
This pull request fixes the issue related to incorrect casing in `kubectl` commands used for creating `serviceaccount`.
## Describe Your Solution 🔧
This PR corrects the casing for the Kubernetes `serviceaccount` creation and rolebinding command to ensure compatibility with `kubectl`. Previously, the commands used incorrect casing (`serviceAccount`), which could potentially lead to execution errors or compatibility issues with Kubernetes API expectations.
Reference: [Kubernetes Official Documentation for Creating a ServiceAccount](https://kubernetes.io/docs/reference/kubectl/generated/kubectl_create/kubectl_create_serviceaccount/)
## Types of changes :bookmark:
- [x] Bugfix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
## Test Plan 🧪
#### Behavior Without This Pull Request :coffin:
#### Behavior With This Pull Request :tada:
#### Related Unit Tests
---
# Checklist 📝
- [x] This patch was not authored or co-authored using [Generative Tooling](https://www.apache.org/legal/generative-tooling.html)
**Be nice. Be informative.**
Closes #6440 from huangzhir/doc-fix.
Closes #6440
5c657034d [huangzhir] Fix casing in kubectl commands for serviceaccount creation
Authored-by: huangzhir <306824224@qq.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>
diff --git a/docs/deployment/kyuubi_on_kubernetes.md b/docs/deployment/kyuubi_on_kubernetes.md
index 8351055..8efed59 100644
--- a/docs/deployment/kyuubi_on_kubernetes.md
+++ b/docs/deployment/kyuubi_on_kubernetes.md
@@ -77,8 +77,8 @@
For example, you can create ServiceAccount by following command:
```shell
-kubectl create serviceAccount kyuubi -n <your namespace>
-kubectl create rolebinding kyuubi-role --role=edit --serviceAccount=<your namespace>:kyuubi --namespace=<your namespace>
+kubectl create serviceaccount kyuubi -n <your namespace>
+kubectl create rolebinding kyuubi-role --role=edit --serviceaccount=<your namespace>:kyuubi --namespace=<your namespace>
```
See more related details in [Using RBAC Authorization](https://kubernetes.io/docs/reference/access-authn-authz/rbac/) and [Configure Service Accounts for Pods](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/).
