Custom hapi server example handle static files (#6822)
Custom hapi server example handle static files (#6822)

While implementing hapi as a custom server, I found a minor issue. The example provided isn't showing that we also need to serve static files using next. This change should fix that. Thanks!
flybayer/next.js,JeromeFitz/next.js,zeit/next.js,BlancheXu/test,JeromeFitz/next.js,azukaru/next.js,azukaru/next.js,flybayer/next.js,JeromeFitz/next.js,azukaru/next.js,flybayer/next.js,flybayer/next.js,BlancheXu/test,zeit/next.js,JeromeFitz/next.js,azukaru/next.js,zeit/next.js,BlancheXu/test