A simple viewer for sharing code examples hosted on GitHub Gist. For example, if your Gist URL is:
https://gist.github.com/mbostock/1353700
Replace “gist.github.com” with “bl.ocks.org” in the URL to view it:
https://bl.ocks.org/mbostock/1353700
The main source for your example is in index.html. This file can contain relative links to other files in your Gist, such as images, scripts or stylesheets. And of course you can use absolute links, such as CDN-hosted D3, jQuery or Leaflet. To explain your example, add a README.md written in Markdown. (You can omit the index.html if you just want to write, too.)