Post-SF1 tweaks by Avand

[avand]

A set of improvements:

• Auto-indenting the index.html that, for some reason, was all on one line
• Whitespace cleanup in style.css
• Setting a max-width on the content wrapper to prevent super long lines
• Past events 🎉
• Press 📰
• Increasing line-height

This PR should be squash merged upon approval to preserve a clean history.

[jessepickard]

https://cl.ly/3e3W3D421K3v

Past event says los angeles hackathon.

Can we put the techcrunch article at the top of the press mentions? @avand

[avand]

Fixed. Please approve :)