message: add link to asciinema.org
diff: @@ -11,7 +11,7 @@ approach (like
  unikernel features for a better programmability and scalability for hierarchical
  systems.
  -![HermitCore Demo](http://www.hermitcore.org/img/demo.gif)
  +[![HermitCore Demo](http://www.hermitcore.org/img/demo.gif)](https://asciinema.org/a/42857)
  On the startup of HermitCore applications, cores are isolated from the Linux
  system enabling bare-metal execution of on these cores. This approach achieves
  