Let competitors request external libraries in the simulator

We've decided to allow the inclusion of libraries, so document a
way that teams can request them.

Author: PeterJCLaw

competition-simulator/index.md

@@ -21,7 +21,7 @@ This simulation is based in [Webots](https://cyberbotics.com/#download), which w
 
 #### Python Version
 
-You will also need Python installed. Additional external libraries are not supported.
+You will also need Python installed.
 
 | Platform | Supported Python Version |
 |----------|--------------------------|
@@ -31,6 +31,11 @@ You will also need Python installed. Additional external libraries are not suppo
 
 In the competition, Python 3.7 will be used.
 
+Currently no [external libraries]({{ site.baseurl}}/programming/python/libraries)
+are provided, however if there are libraries which you need you can request
+their inclusion [via the forums](/forum) (please include a link to the package
+on [PyPI](https://pypi.org/)).
+
 ### Installing the simulation
 
 1. [Download the simulation](https://github.com/srobo/competition-simulator/releases/download/0.2.0/competition-simulator-0.2.0.zip), and unzip it somewhere on your computer.
@@ -107,4 +112,4 @@ speeds (▶▶ and ▶▶▶).
 
 These differences mean that your code will need to use a different mechanism to
 find the current time or to sleep within the simulation. Find out more by
-heading over to the [programming docs on time](./programming#time).
+heading over to the [programming docs on time](./programming#time).

programming/python/libraries.md

@@ -6,6 +6,17 @@ title: Included Python Libraries
 Included Libraries
 ==================
 
+Competition Simulator
+---------------------
+
+The competition simulator currently doesn't include any packages other than the
+standard library. If there is library you would like included, please let us
+know [via the forums](/forum) and include a link to the package on
+[PyPI](https://pypi.org/).
+
+Robot Kit
+---------
+
 The following python libraries are installed and available for use in your robot's software:
 
  * [Babel 1.3.3](http://babel.pocoo.org/)