Developer Console docs: clarify that client needs to come from somewhere

[tdeitch]

Based on this Community question:

I am developing with React and OSDK and encountered an error when trying to apply an action. I copied and pasted the sample code from the API documentation into the developer console, but I received an error message indicating that there is no client name, as shown in the screenshot below.

And the response from Jeg:

It looks like this code sample does not have the client imported, you will likely need to import the client from wherever it was instantiated:

import { client } from "../client.ts";

If you’ve used a template, if you don’t have a client already, they are made using code similar to

import { createClient } from "@osdk/client";
import { createPublicOauthClient } from "@osdk/oauth";
import { $ontologyRid } from "@sample/sdk";
export const auth = createPublicOauthClient(clientId, url, redirectUrl);
export const client = createClient(url, $ontologyRid, auth);

We should give people some hint (either inline or via a link or comment) about how to instantiate the client and how to use the snippets in context.