   let githubUrl = "https://github.com/hackersatcambridge/"
   let mediumUrl = "https://medium.com/hackers-at-cambridge"
   let calendarUrl = "https://calendar.google.com/calendar/embed?src=10isedeg17ugvrvg73jq9p5gts%40group.calendar.google.com&ctz=Europe/London"
+  let demonstratorsGroupUrl = "https://www.facebook.com/groups/1567785333234852/"
 
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            ),
            El.Div[Attr.className => "LandingAbout__text"].containing(
              El.H1[Attr.className => "LandingAbout__headline"].containing("HaC Nights"),
              El.P.containing(
                "HaC Nights are weekly events we run for people of all experience levels! If you have something you’re working on - be it a project, some supervision work or coursework – then a HaC night is a great social environment for getting things done."
              ),
              El.P.containing(
                "We’ll bring the food, you bring the work and if you get stuck, there’s bound to be someone in the room who can help you out!"
              ),
              El.P.containing(
                TextNode("Find us on our "),
                El.A[Attr.href => facebookUrl
            ].containing("Facebook"),
                TextNode(" page to stay up to date.")
              )
            )
          )
        )

            ),
            El.Div[Attr.className => "LandingAbout__text"].containing(
              El.H1[Attr.className => "LandingAbout__headline"].containing("Hackathons and Game Jams"),
              Markdown("""
                At the end of the Michaelmas we run the annual Hackers at Cambridge Game Gig - a fun and friendly competition where 100 Cambridge students from a wide variety of courses get together to make games in 12 hours

                At the end of the Lent term we additionally run an annual themed hackathon. Last year we partnered with charities in order to tackle problems around the world.

                These competitions naturally come with lots of awesome free food.
              """)
            )
          ),
          El.Article[Attr.className => "LandingAbout__section"].containing(
