Links in readme

Author: egil

README.md

@@ -1,6 +1,6 @@
 # Razor Component Testing Library
 A prototype of a testing library that renders Razor Components as HTML and compare the result to an 
-expected result, using the XMLDiff library and Shouldly for writing out error messages.
+expected result, using the [XMLDiff](https://www.xmlunit.org/) library and [Shouldly](https://github.com/shouldly/shouldly) for writing out error messages.
 
 **NOTE: Only tested with Preview-6**