Add links to Errors in README

Author: mahirshah

README.md

@@ -185,9 +185,9 @@ is not a shorthand property) simply returns an object mapping the original prope
  * propertyName - the property name for the given value
  * propertyValue - the value of the property
  * [recursivelyResolve=false] - recursively resolve additional longhand properties if the shorthands expand to additional shorthands. For example, the border property expands to border-width, which expands further to border-left-width, border-right-width, etc.
- * throws {ParseError} - if the propertyValue cannot be parsed.
- * throws {UnknownPropertyError} - if the propertyName is not defined in mdn.
- * throws {UnsupportedPropertyError} - if the propertyName is a shorthand property, but we don't support expanding it yet.
+ * throws {[ParseError](./src/errors/ParseError.js)} - if the propertyValue cannot be parsed.
+ * throws {[UnknownPropertyError](./src/errors/UnknownPropertyError.js)} - if the propertyName is not defined in mdn.
+ * throws {[UnsupportedPropertyError](./src/errors/UnsupportedPropertyError.js)} - if the propertyName is a shorthand property, but we don't support expanding it yet.
 
 Currently supports the following properties: