Docs: Provide ElasticSearch version that is supported

[akash-jain-10]

Describe your changes :

see #6013

Type of change :

• [x] Documentation

Checklist:

• [x] I have read the CONTRIBUTING document.
• [ ] I have commented on my code, particularly in hard-to-understand areas.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [x] All new and existing tests passed.

Reviewers