Docs improvement

[barnjamin]

From the docs here:
https://algorand.github.io/js-algorand-sdk/classes/indexer.html#searchfortransactions

One of the methods is searchForTransactions which returns a SearchForTransactions object which has parameters set as chained method calls then do to execute.

The chained method calls are not visible in the docs, you need to click the link then click the name of the returned class to see the list of methods.

I can submit a PR for this but I'm not sure what needs to be done exactly to expose these methods.

[barnjamin]

It looks like this is because the JSONRequest subclasses are not exported.

Adding

import MakeHealthCheck from './client/v2/indexer/makeHealthCheck'
export {MakeHealthCheck}

provided the documentation for the class and available modifiers

I'm almost positive we don't want to just export the classes directly, but not sure the right way to do this.

Maybe export the interface of the JSONRequest subclass?

export interface MakeHealthCheckRequest {
  do(headers?: Record<string, any>): Promise<Record<string, any>>
}