Add support for rendering exceptions

docs/input/exceptions.md

@@ -0,0 +1,26 @@
+Title: Exceptions
+Order: 3
+---
+
+Exceptions isn't always readable when viewed in the terminal.  
+You can make exception a bit more readable by using the `WriteException` method.
+
+```csharp
+AnsiConsole.WriteException(ex);
+```
+
+<img src="assets/images/exception.png" style="max-width: 100%; margin-bottom: 20px">
+
+
+
+You can also shorten specific parts of the exception to make it even
+more readable, and make paths clickable hyperlinks. Whether or not
+the hyperlinks are clickable is up to the terminal. 
+
+```csharp
+AnsiConsole.WriteException(ex, 
+    ExceptionFormat.ShortenPaths | ExceptionFormat.ShortenTypes |
+    ExceptionFormat.ShortenMethods | ExceptionFormat.ShowLinks);
+```
+
+<img src="assets/images/compact_exception.png" style="max-width: 100%;">

docs/input/markup.md

@@ -65,6 +65,15 @@ For a list of emoji, see the [Emojis](xref:styles) appendix section.
 
 # Colors
 
+In the examples above, all colors was referenced by their name,
+but you can also use the hex or rgb representation for colors in markdown.
+
+```csharp
+AnsiConsole.Markup("[red]Foo[/] ");
+AnsiConsole.Markup("[#ff0000]Bar[/] ");
+AnsiConsole.Markup("[rgb(255,0,0)]Baz[/] ");
+```
+
 For a list of colors, see the [Colors](xref:colors) appendix section.
 
 # Styles