format documentation about type system

1 files changed, 16 insertions, 13 deletions

diff --git a/doc/type-system.md b/doc/type-system.md
index 9b4a2ed..4615dd1 100644
--- a/doc/type-system.md
+++ b/doc/type-system.md
@@ -8,19 +8,22 @@ The purpose of the type system is to have a consistent and
 standardized way of type-checking and type-converting the
 arguments of blocks. For example, the 'minus' block takes two
 arguments of type TYPE_NUMBER. But that doesn't mean that only
-number blocks can be attached to its argument docks. In fact, colors,
-single characters, and numeric strings (like `"-5.2"`) can easily be converted
-to numbers. The type system takes care of this. When e.g., a color is attached
-to the argument dock of the 'minus' block, the type system tries to find a
-converter from the type TYPE_COLOR (the type of the color block) to the type
-TYPE_NUMBER. If it finds one (and in this case it does), then the converter is
-applied to the argument. A converter is simply a callable (usually a function)
-and applying it simply means calling it and passing it the value of the
-argument block as a parameter. The converter returns the number that
-corresponds to the color, and the number is passed on to the 'minus' block.
-This way, the 'minus' block does not have to know about colors, characters, or
-numeric strings. Likewise, the color block also does not have to care about
-how its value can be converted to a number.
+number blocks can be attached to its argument docks. In fact,
+colors, single characters, and numeric strings (like `"-5.2"`)
+can easily be converted to numbers. The type system takes care
+of this. When e.g., a color is attached to the argument dock of
+the 'minus' block, the type system tries to find a converter
+from the type TYPE_COLOR (the type of the color block) to the
+type TYPE_NUMBER. If it finds one (and in this case it does),
+then the converter is applied to the argument. A converter is
+simply a callable (usually a function) and applying it simply
+means calling it and passing it the value of the argument block
+as a parameter. The converter returns the number that cor-
+responds to the color, and the number is passed on to the
+'minus' block. This way, the 'minus' block does not have to know
+about colors, characters, or numeric strings. Likewise, the
+color block also does not have to care about how its value can
+be converted to a number.
 
 Why do some Blocks Need Return Types?
 -------------------------------------