docs: example servers configuration for openapi generator and reference plugin

Author: dinwwwh

apps/content/docs/openapi/openapi-specification.md

@@ -94,13 +94,19 @@ const specFromContract = await openAPIGenerator.generate(contract, {
     title: 'My App',
     version: '0.0.0',
   },
+  servers: [
+    { url: 'https://api.example.com/v1', },
+  ],
 })
 
 const specFromRouter = await openAPIGenerator.generate(router, {
   info: {
     title: 'My App',
     version: '0.0.0',
   },
+  servers: [
+    { url: 'https://api.example.com/v1', },
+  ],
 })
 ```
 

apps/content/docs/openapi/plugins/openapi-reference.md

@@ -29,6 +29,9 @@ const handler = new OpenAPIHandler(router, {
           title: 'ORPC Playground',
           version: '1.0.0',
         },
+        servers: [ // or let the plugin auto-infer from the request
+          { url: 'https://api.example.com/v1', },
+        ],
       },
     }),
   ]