update: readme

README.md

@@ -7,3 +7,29 @@ TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
 * Read [TypeScript Language Specification in Simplified Chinese (in translating...)](./doc/TypeScript Language Specification.md)
 
 I'd love for you to contribute to the translation:)
+
+## Using Gulp with TypeScript
+
+Install `gulp` and `gulp-typescript`. See [package.json](./package.json).
+
+```sh
+$ npm install --global gulp
+$ npm install --save-dev gulp gulp-typescript
+```
+
+Config gulp. See [gulpfile.js](./gulpfile.js).
+
+```js
+gulp.task('typescript', function() {
+  var tsResult = gulp.src('ts/*.ts')
+    .pipe(ts({
+      target: 'ES5',
+      declarationFiles: false,
+      noExternalResolve: true
+    }));
+
+  tsResult.dts.pipe(gulp.dest('dist/tsdefinitions'));
+
+  return tsResult.js.pipe(gulp.dest('dist/typescript'));
+});
+```