Tweak to getting started

[benjie]

I was following the getting started verbatim, and made schema.js with the changes proposed.

I had to add type: "module" to my package.json (this step is undocumented).

I then wrote the server file to server.js.

When I ran it with node server.js I got the error:

$ node server.js 
node:internal/modules/run_main:128
    triggerUncaughtException(
    ^

Error [ERR_MODULE_NOT_FOUND]: Cannot find module '/home/benjie/Dev/DELETEME/schema-yoga/schema' imported from /home/benjie/Dev/DELETEME/schema-yoga/server.js
Did you mean to import "./schema.js"?
    at finalizeResolution (node:internal/modules/esm/resolve:265:11)
    at moduleResolve (node:internal/modules/esm/resolve:933:10)
    at defaultResolve (node:internal/modules/esm/resolve:1169:11)
    at ModuleLoader.defaultResolve (node:internal/modules/esm/loader:542:12)
    at ModuleLoader.resolve (node:internal/modules/esm/loader:510:25)
    at ModuleLoader.getModuleJob (node:internal/modules/esm/loader:239:38)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:96:40)
    at link (node:internal/modules/esm/module_job:95:36) {
  code: 'ERR_MODULE_NOT_FOUND',
  url: 'file:///home/benjie/Dev/DELETEME/schema-yoga/schema'
}

Node.js v20.18.1

(DELETEME is my scratchpad folder 😉)

The issue is that ESM in Node.js requires you to reference the file extension. So I've added the .js.

I recommend that you also consider adding a note to the page instructing the user to add type: "module" to their package.json.