Update types.md

docs/types.md

@@ -1,6 +1,6 @@
 ## Values and Types
 
-Gravity is a dynamically typed language so variables do not have a type, although they refer to a value that does have a type. In Gravity everything is an object (with methods you can call and instance variables you can use). Basic intrinsic types are of class [Object](object.md), [Int](int.md), [Float](float.md), [String](string.md), [Bool](bool.md), [Null](null.md), [Class](class.md), [Function](func.md), [Fiber](fiber.md), [Instance](instance.md), [List](list.md), [Map](map.md) and [Range](range.md).
+Gravity is a dynamically typed language so variables do not have a type, although they refer to a value that does have a type. In Gravity everything is an object (with methods you can call and instance variables you can use). Basic built-in types are of class [Object](object.md), [Int](int.md), [Float](float.md), [String](string.md), [Bool](bool.md), [Null](null.md), [Class](class.md), [Function](func.md), [Fiber](fiber.md), Instance, [List](list.md), [Map](map.md) and [Range](range.md).
 
 ### Manifest Typing