README.md in datacite-mapping-0.2.5 vs README.md in datacite-mapping-0.3.0

- old
+ new
@@ -44,11 +44,11 @@
 # => #<Datacite::Mapping::Description:0x007f976aafa330 …
 abstract.value
 # => "XML example of all DataCite Metadata Schema v4.0 properties."
 ```
 
-Note that Datacite::Mapping uses the `TypesafeEnum` gem to represent controlled vocabularies such
-as [ResourceTypeGeneral](http://www.rubydoc.info/github/CDLUC3/datacite-mapping/master/Datacite/Mapping/ResourceTypeGeneral)
+Note that Datacite::Mapping uses the [TypesafeEnum](https://github.com/dmolesUC3/typesafe_enum) gem to represent controlled 
+vocabularies such as [ResourceTypeGeneral](http://www.rubydoc.info/github/CDLUC3/datacite-mapping/master/Datacite/Mapping/ResourceTypeGeneral)
 and [DescriptionType](http://www.rubydoc.info/github/CDLUC3/datacite-mapping/master/Datacite/Mapping/DescriptionType).
 
 ### Writing
 
 In general, a `Resource` object must be provided with all required attributes on initialization.