Create colour codes docs. Create empty prompt.hjson doc page pending it being written.

docs/_includes/nav.md

@@ -16,13 +16,15 @@
     - [Editing hjson]({{ site.baseurl }}{% link configuration/editing-hjson.md %})
     - [config.hjson]({{ site.baseurl }}{% link configuration/config-hjson.md %})
     - [menu.hjson]({{ site.baseurl }}{% link configuration/menu-hjson.md %})
-    - prompt.hjson
+    - [prompt.hjson]({{ site.baseurl }}{% link configuration/prompt-hjson.md %})
     - [Directory Structure]({{ site.baseurl }}{% link configuration/directory-structure.md %})
     - [Archivers]({{ site.baseurl }}{% link configuration/archivers.md %})
     - [File Transfer Protocols]({{ site.baseurl }}{% link configuration/file-transfer-protocols.md %})
     - [Email]({{ site.baseurl }}{% link configuration/email.md %})
+    - [Colour Codes]({{ site.baseurl }}{% link configuration/colour-codes.md %})
     - Scheduled jobs
 
+
   - File Base
     - [About]({{ site.baseurl }}{% link filebase/index.md %})
     - [Configuring a File Area]({{ site.baseurl }}{% link filebase/first-file-area.md %})

docs/configuration/colour-codes.md

@@ -0,0 +1,25 @@
+---
+layout: page
+title: Colour Codes
+---
+ENiGMA½ supports Renegade-style pipe colour codes for formatting strings. You'll see them used in [`config.hjson`](config-hjson),
+[`prompt.hjson`](prompt-hjson), [`menu.hjson`](menu-hjson), and can also be used in places like the oneliner, rumour mod,
+full screen editor etc.
+
+## Usage
+When ENiGMA½ encounters colour codes in strings, they'll be processed in order and combined where possible.
+
+For example:
+
+`|15|17Example` - white text on a blue background
+
+`|10|23Example` - light green text on a light grey background
+
+
+## Colour Code Reference
+
+:warning: Colour codes |24 to |31 are considered "blinking" or "iCE" colour codes. On terminals that support them they'll 
+be shown as the correct colours - for terminals that don't, or are that are set to "blinking" mode - they'll blink!
+
+![Regegade style colour codes](../assets/images/colour-codes.png "Colour Codes")
+

docs/configuration/prompt-hjson.md

@@ -0,0 +1,6 @@
+---
+layout: page
+title: prompt.hjson
+---
+:zap: This page is to describe general information the `prompt.hjson` file. It
+needs fleshing out, please submit a PR if you'd like to help!