[KYUUBI #1999] Update quick_start_with_helm.md

cretate ns kyuubi ---> create ns kyuubi

### _Why are the changes needed?_

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [ ] [Run test](https://kyuubi.apache.org/docs/latest/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #1999 from HYBG-1126/patch-1.

Closes #1999

f68f73e [HYBG] Update quick_start_with_helm.md

Lead-authored-by: HYBG-1126 <hybg1126@outlook.com>
Co-authored-by: HYBG <44338121+HYBG-1126@users.noreply.github.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>

Author: 2 people

docs/quick_start/quick_start_with_helm.md

@@ -35,7 +35,7 @@ Please go to [Install Helm](https://helm.sh/docs/intro/install/) page to get and
 
 #### [Optional] Create namespace on kubernetes
 ```bash
-cretate ns kyuubi
+create ns kyuubi
 ```
 
 #### Get kyuubi started