Commented config.template.js, hopefully to aid new users. (#631)

* Commented config.template.js, hopefully to aid new users.

* Fixed typo, missing comma.

* Fixed another typo

config.template.js

@@ -1,23 +1,50 @@
+// This is the configuration file for Flood, a React-based frontend for the
+// rtorrent BitTorrent client.
+// Copy this file to ./config.js and make changes below.
+// config.js must exist before running `npm run build`.
+
 const CONFIG = {
+  // The URL that Flood will be served from. For example, if you intend to
+  // serve from http://example.com/flood, set this to '/flood'.
   baseURI: '/',
+  // Flood uses a local nedb database to keep track of users, torrents,
+  // and activity. The database is regularly purged to remove outdated data.
+  // This value dictates how old data is, in milliseconds, before being purged.
   dbCleanInterval: 1000 * 60 * 60,
+  // Where to store the local nedb database.
   dbPath: './server/db/',
+  // The host that Flood should listen for web connections on.
+  // If you want to connect to Flood from hosts other that the one it is running
+  // on, you should change this value.
+  // To listen on all interfaces, change to `floodServerHost: '0.0.0.0'`
   floodServerHost: '127.0.0.1',
+  // The port that Flood should listen for web connections on.
   floodServerPort: 3000,
+  // Used for development. See the "Local Development" section of README.md
+  // for detail.
   floodServerProxy: 'http://127.0.0.1',
+  // Flood keeps a history of torrent download and upload speeds.
+  // This value dictates the number of individual records per period to keep.
   maxHistoryStates: 30,
+  // How often (in milliseconds) Flood will check for updates to torrent detail.
   pollInterval: 1000 * 5,
+  // How often (in milliseconds) Flood will check rtorrent for status updates.
+  torrentClientPollInterval: 1000 * 2,
+  // A unique secret for signing messages with JWT (see https://jwt.io). Change
+  // this to something unique and hard to guess.
   secret: 'flood',
+  // Configuration details for your backend rtorrent interface.
+  // These are defaults for most installs; check your .rtorrent.rc for changes.
   scgi: {
     host: 'localhost',
     port: 5000,
     socket: false,
     socketPath: '/tmp/rtorrent.sock'
   },
+  // Configuration for SSL, if using SSL with the Flood service directly.
   ssl: false,
   sslKey: '/absolute/path/to/key/',
   sslCert: '/absolute/path/to/certificate/',
-  torrentClientPollInterval: 1000 * 2
 };
-
+// Do not remove the below line.
 module.exports = CONFIG;