message: Update README.md for CppCast 2017
diff: (https://img.shields.io/badge/documentation-master-brightgreen.svg)](http://vinniefalco.github.io/beast/) [![License]
  (https://img.shields.io/badge/license-boost-brightgreen.svg)](LICENSE_1_0.txt)
  -# HTTP and WebSocket implementations built on Boost.Asio
  +# HTTP and WebSocket built on Boost.Asio in C++11
  ---
  -## Beast at CppCon 2016
  +## Appearances
  -Presentation
  -(slides: <a href="https://raw.githubusercontent.com/vinniefalco/Beast/master/doc/images/CppCon2016.pdf">CppCon2016.pdf</a>)
  -
  -<a href="https://www.youtube.com/watch?v=uJZgRcvPFwI">
  -<img width="320" height = "180" alt = "Beast"
  - src="https://raw.githubusercontent.com/vinniefalco/Beast/master/doc/images/CppCon2016.png">
  -</a>
  +| <a href="http://cppcast.com/2017/01/vinnie-falco/">CppCast 2017</a> | <a href="https://raw.githubusercontent.com/vinniefalco/Beast/master/doc/images/CppCon2016.pdf">CppCon 2016</a> |
  +| ------------ | ----------- |
  +| <a href="http://cppcast.com/2017/01/vinnie-falco/"><img width="180" height="180" alt="Vinnie Falco" src="https://avatars1.githubusercontent.com/u/1503976?v=3&u=76c56d989ef4c09625256662eca2775df78a16ad&s=180"></a> | <a href="https://www.youtube.com/watch?v=uJZgRcvPFwI"><img width="320" height = "180" alt="Beast" src="https://raw.githubusercontent.com/vinniefalco/Beast/master/doc/images/CppCon2016.png"></a> |
  ---
  