Gulp+BrowserSync

gulpfile.js

var gulp = require('gulp');
var browserSync = require('browser-sync');

gulp.task('browser-sync', function() {
	browserSync.init(['./*.html'], {
	    server: {
	        baseDir: "./"
	    }
	});
});

gulp.task('default', ['browser-sync']);

instruction.txt

1. install gulp and browser-sync
$ npm install browser-sync gulp --save-dev

2. create gulpfile.js

3. start server
$ gulp