Add license section in with-pretty-url-routing [ci skip] (#4366)
Add license section in with-pretty-url-routing [ci skip] (#4366)


zeit/next.js,azukaru/next.js,zeit/next.js,flybayer/next.js,flybayer/next.js,JeromeFitz/next.js,azukaru/next.js,JeromeFitz/next.js,BlancheXu/test,JeromeFitz/next.js,JeromeFitz/next.js,BlancheXu/test,azukaru/next.js,flybayer/next.js,azukaru/next.js,flybayer/next.js,zeit/next.js,BlancheXu/test