Create a webpage for impress.js

I think you should create a webpage to advertise the project. Demos are useful to showcase the software's capabilities but are not a good way to communicate new releases, share tutorials or templates.

I'm really happy that relative positioning, substeps and markdown support were added. I think these features greatly improve the software's usability and in IMHO creating a webpage would be a good way to create momentum for the project.

Thanks a lot for your work. I'm really happy the project is moving forward after such a prolonged hiatus and I look forward to testing all this new stuff.

No files, tests, or entry points are named. Start by defining the webpage's scope and reviewing how the existing demos and project materials are organized. Done should include a webpage that advertises impress.js and communicates releases, tutorials, and templates.

Written by the indexing model from the issue text.