Here's my setup:

• Install LiveReload Chrome Extension
• Install gulp, nodemon and livereload npm modules in the project dir
• setup gulpfile.js as follows:

"use strict"
const gulp = require('gulp')
const nodemon = require('gulp-nodemon')
const livereload = require('gulp-livereload')

gulp.task('default', () => {
    livereload.listen()
    nodemon({
        script: 'app.js',
        ext: 'js'
    }).on('restart', () => {
        gulp.src('app.js')
            .pipe(livereload())
    })
})

• Enable livereload on chrome
• Run gulp in the project dir
• Done!

nodemon restarts the server on change and the on restart callback runs livereload. Then the livereload on chrome detects it and reloads the page. Profit! :)

Hope this helps. :)