If you prefer, you can use a Grunt plugin to auto-generate Angular $resource services instead of the LoopBack Angular tool, lb-ng. You can then use grunt-docular.com to generate client API docs.
The Grunt plugin provides a single task, loopback_sdk_angular. To use this task in your project's Gruntfile, add a section named loopback_sdk_angular to the data object passed into grunt.initConfig().
output: 'js/lb-services.js'        // Other task-specific options go here.
Path to the main file of your LoopBack server (usually server.js).
Path to the services file you want to generate, e.g. js/lb-service.js.
Name for the generated AngularJS module.
The value configured in the LoopBack application via app.set('restApiRoot') or /api.
URL of the REST API endpoint. Use a relative path if your AngularJS front-end is running on the same host as the server. Use a full URL including hostname when your AngularJS application is served from a different address, e.g. when bundled as a Cordova application.
For more information about configuring Grunt tasks, see Grunt documentation - Configuring tasks For more about Docular configuration, see grunt-docular.com.
Include the generated file in your web application.