Added some documentation on how configuration files should be laid out

config/config.go

@@ -38,16 +38,24 @@ const (
 	// string
 	TypeString Type = iota
 
-	// image/color.RGBA
+	// Type: image/color.RGBA
+	// Represented as a 24 bit hexidecimal number (case insensitive)
+	// preceded with a # sign where the first two digits represent the red
+	// channel, the middle two digits represent the green channel, and the
+	// last two digits represent the blue channel.
 	TypeColor
 
-	// int
+	// Type: int
+	// An integer literal, like 123456789
 	TypeInteger
 
-	// float64
+	// Type: float64
+	// A floating point literal, like 1234.56789
 	TypeFloat
 
-	// bool
+	// Type: bool
+	// Values true, yes, on, and 1 are all truthy (case insensitive) and
+	// anything else is falsy.
 	TypeBoolean
 )