I want a pretty page! How do I activate Bootstrap Shortcodes on my city's subpage?

To make it easy to format and customize your city’s subpage on our wordpress sites (https://oscedays.org/“yourcity”) we have the Bootstrap shortcode plugin installed. With this you can do fancy things like the London page!
You should see the bootstrap toolbar when you’re editing your page:

if you can’t see the lower two lines of icons, you just need to click on ‘Toolbar Toggle’ and the rest will appear.

You can find a tutorial for building a page with Bootstrap shortcodes here: https://wordpress.org/plugins/easy-bootstrap-shortcodes/