Change archived asciinema example (drivendataorg#163)

* Change archived asciinema example

* Update README.md

Fix Asciinema powerline error

* Update docs to show updated asciinema example

Author: ericmjalbert

README.md

@@ -29,7 +29,7 @@ $ conda install cookiecutter
     cookiecutter https://github.com/drivendata/cookiecutter-data-science
 
 
-[![asciicast](https://asciinema.org/a/9bgl5qh17wlop4xyxu9n9wr02.png)](https://asciinema.org/a/9bgl5qh17wlop4xyxu9n9wr02)
+[![asciicast](https://asciinema.org/a/244658.svg)](https://asciinema.org/a/244658)
 
 
 ### The resulting directory structure

docs/docs/index.md

@@ -72,7 +72,7 @@ cookiecutter https://github.com/drivendata/cookiecutter-data-science
 
 ### Example
 
-<script type="text/javascript" src="https://asciinema.org/a/9bgl5qh17wlop4xyxu9n9wr02.js" id="asciicast-9bgl5qh17wlop4xyxu9n9wr02" async></script>
+[![asciicast](https://asciinema.org/a/244658.svg)](https://asciinema.org/a/244658)
 
 ## Directory structure