Introduce headings to break up the supervisor docs

This was originally a blog post and still flows well, however I'm
about to add yet more content here so having some sections will
hopefully keep it approachable.

Author: PeterJCLaw

robots_101/team_supervisor.md

@@ -7,6 +7,8 @@ title: Robots 101 - So you're running a team
 
 Here’s a little bit of info on what to expect from Student Robotics, and your responsibilities as a team supervisor.
 
+## Your role
+
 As a team supervisor, your role is to guide the competitors through the journey of building a robot. You’ll be there to point them in the right direction when they get stuck and resolve any issues they run into. We encourage team supervisors to limit their involvement with the robot design/building process so that the finished contraptions are 100% student-built which competitors find very rewarding.
 
 You’ll be our point of contact with the team. If you have any questions during the year, just email <{{ site.emails.teams }}>. We’ll also be sending you emails every month or so with important information such as:
@@ -17,6 +19,8 @@ You’ll be our point of contact with the team. If you have any questions during
 We aim to host our Kickstart event and Tech Days in multiple locations to make it more convenient for you to travel. However, you will still need to arrange to travel to these places.
 This is especially important to book for the competition, as you will likely need to arrange to stay overnight near the venue.
 
+## Materials
+
 Our [kit]({{ site.baseurl }}/kit/) includes a battery and a few boards to get your robot started. However, your team will need additional components and materials from which to build their robot. For the chassis, your team has several options. Teams often use cardboard, MDF, Aluminium, and/or Acrylic. In terms of electronic components, teams often make use of:
 - At least two 12V motors (our kit supports four)
 - A few servo motors
@@ -33,6 +37,8 @@ Popular suppliers of these components are:
 - [Amazon](https://www.amazon.co.uk/)
 - [eBay](https://www.ebay.co.uk/)
 
+## Support
+
 To allow you and your team to ask us questions directly, as well as share what they’re working on with other teams, we provide a [Discord]({{ site.baseurl }}/tutorials/discord) server. You will receive a unique link to share with your team so that you can all join with your own Discord accounts. Each team gets a private text channel for direct support from us which can be used to discuss your robot without worrying about giving other teams your strategy. We also have a team-supervisor only channel for any questions you may have. There are also some text channels where teams can communicate with each other (and us!) for more general topics. If you’d like a voice channel for your team, email us or ask in `#team-supervisor`!
 
 If you’d like additional support throughout the year, we have dedicated mentors who can regularly join your team meetings either in-person or remotely. Your mentor will help guide your team towards good solutions for their robot, provide assistance where they might need it as well as help them understand the kit, the rules and the competition as a whole. We *strongly* encourage new teams to sign up for mentoring. If this sounds like something you’d like, look out for our email shortly after Kickstart.