message: chore: update travis badge url
diff: **OpenAPI/Swagger-generated API Reference Documentation**
  - [![Build Status](https://travis-ci.org/Redocly/redoc.svg?branch=master)](https://travis-ci.org/Redocly/redoc) [![Coverage Status](https://coveralls.io/repos/Redocly/redoc/badge.svg?branch=master&service=github)](https://coveralls.io/github/Redocly/redoc?branch=master) [![dependencies Status](https://david-dm.org/Redocly/redoc/status.svg)](https://david-dm.org/Redocly/redoc) [![devDependencies Status](https://david-dm.org/Redocly/redoc/dev-status.svg)](https://david-dm.org/Redocly/redoc#info=devDependencies) [![npm](http://img.shields.io/npm/v/redoc.svg)](https://www.npmjs.com/package/redoc) [![License](https://img.shields.io/npm/l/redoc.svg)](https://github.com/Redocly/redoc/blob/master/LICENSE)
  + [![Build Status](https://travis-ci.com/Redocly/redoc.svg?branch=master)](https://travis-ci.com/Redocly/redoc) [![Coverage Status](https://coveralls.io/repos/Redocly/redoc/badge.svg?branch=master&service=github)](https://coveralls.io/github/Redocly/redoc?branch=master) [![dependencies Status](https://david-dm.org/Redocly/redoc/status.svg)](https://david-dm.org/Redocly/redoc) [![devDependencies Status](https://david-dm.org/Redocly/redoc/dev-status.svg)](https://david-dm.org/Redocly/redoc#info=devDependencies) [![npm](http://img.shields.io/npm/v/redoc.svg)](https://www.npmjs.com/package/redoc) [![License](https://img.shields.io/npm/l/redoc.svg)](https://github.com/Redocly/redoc/blob/master/LICENSE)
  [![bundle size](http://img.badgesize.io/https://cdn.jsdelivr.net/npm/redoc/bundles/redoc.standalone.js?compression=gzip&max=300000)](https://cdn.jsdelivr.net/npm/redoc/bundles/redoc.standalone.js) [![npm](https://img.shields.io/npm/dm/redoc.svg)](https://www.npmjs.com/package/redoc) [![](https://data.jsdelivr.com/v1/package/npm/redoc/badge)](https://www.jsdelivr.com/package/npm/redoc) [![Docker Build Status](https://img.shields.io/docker/build/redocly/redoc.svg)](https://hub.docker.com/r/redocly/redoc/)
  