Adding server task documentation.

docs/task_server.md

@@ -0,0 +1,29 @@
+[Grunt homepage](https://github.com/cowboy/grunt) | [Documentation table of contents](toc.md)
+
+# server (built-in task)
+Start a static web server.
+
+## About
+
+This task starts a static web server on a specified port, at a specified path, which runs as long as grunt is running. Once grunt's tasks have completed, the web server stops.
+
+For more information on general configuration options, see the [configuring grunt](configuring.md) page.
+
+## Usage examples
+
+In this example, `grunt server` will start a static web server at `http://localhost:8000/`, with its base path set to the gruntfile's directory. Of course, it will then immediately stop serving files, because grunt exits automatically when there are no more tasks to run.
+
+The `server` task is most useful when used in conjunction with another task, like the [qunit](task_qunit.md) task.
+
+```javascript
+/*global config:true, task:true*/
+config.init({
+  server: {
+    port: 8000,
+    base: '.'
+  }
+}
+});
+```
+
+See the [server task source](https://github.com/cowboy/grunt/blob/master/tasks/server.js) for more information.

docs/toc.md

@@ -13,11 +13,11 @@
 * [init](task_init.md) - Generate project scaffolding from a predefined template.
 * [lint](task_lint.md) - Validate files with [JSHint][jshint].
 * [qunit](task_qunit.md) - Run [QUnit][qunit] unit tests in a headless [PhantomJS][phantom] instance.
+* [server](task_server.md) - Start a static web server.
 * _(more documentation coming soon)_
 
 <!--
 * [min](task_min.md) - Minify files with [UglifyJS][uglify].
-* [server](task_server.md) - Start a static web server.
 * [test](task_test.md) - Run unit tests with [nodeunit][nodeunit].
 * [watch](task_watch.md) - Run predefined tasks whenever watched files change.
 -->