Gulp project build config.

gulpfile.js

var gulp = require('gulp'),
    livereload = require('gulp-livereload');

gulp.task('watch', function() {
    livereload.listen();
    gulp.watch([
        '**/**.html',
        '**/**.css',
        '**/**.js'
    ], function() {
        livereload.reload();
    })
});