Add search bar to website

[jirfag]

We have too much of documentation. We need a searching to simplify things.
I'm waiting for access to algolia docsearch to introduce it.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[manishramanandi]

I wan to contribute please explain me what is the main problem.