K8 step update

[dhruvinmaniar123]

Updated the docs that mention the install command to install openmetadata helm charts

Type of change:

• Documentation

Checklist:

• I have read the CONTRIBUTING document.
• My PR title is Fixes <issue-number>: <short explanation>
• I have commented on my code, particularly in hard-to-understand areas.
• For JSON Schema changes: I updated the migration scripts or explained why it is not needed.

[harshach]

@dhruvinmaniar123 we should also document about the volumes. Its not clear that they need to create it in the default space.

[akash-jain-10]

@dhruvinmaniar123 we should also document about the volumes. Its not clear that they need to create it in the default space.

Hello @harshach . Volumes will be created in the same namespace where OpenMetadata Dependencies will be deployed for Airflow. The code snippet here includes the namespace where these volumes will be created.