Missing `indexer` page for docs hub

[Mk-turner]

What version of fuels-ts are you using?

https://www.fuel.network/

Steps to Reproduce

https://docs.fuel.network/docs/indexer/. this we need the indexer

Expected Behavior

there should be an indexer on the page this should make it to work perfectly fine.

Actual Behavior

https://docs.fuel.network/docs/indexer/. error page turning up

[arboleya]

@Mk-turner We removed these docs because the indexer got deprecated.

However, you can still find the docs in the repo and run mdbook locally:

• https://github.com/FuelLabs/fuel-indexer