Add backend api doc

Signed-off-by: josh <josh.timmons@hashicorp.com>

plugins/nomad-backend/api-report.md

@@ -0,0 +1,22 @@
+## API Report File for "@backstage/plugin-nomad-backend"
+
+> Do not edit this file. It is a report generated by [API Extractor](https://api-extractor.com/).
+
+```ts
+import { Config } from '@backstage/config';
+import express from 'express';
+import { Logger } from 'winston';
+
+// @public (undocumented)
+export function createRouter(options: RouterOptions): Promise<express.Router>;
+
+// @public (undocumented)
+export interface RouterOptions {
+  // (undocumented)
+  config: Config;
+  // (undocumented)
+  logger: Logger;
+}
+
+// (No @packageDocumentation comment for this package)
+```

plugins/nomad-backend/src/service/router.ts

@@ -20,11 +20,13 @@ import express from 'express';
 import Router from 'express-promise-router';
 import { Logger } from 'winston';
 
+/** @public */
 export interface RouterOptions {
   logger: Logger;
   config: Config;
 }
 
+/** @public */
 export async function createRouter(
   options: RouterOptions,
 ): Promise<express.Router> {