Update README.md

Author: charlesgonzales

vavr/README.md

@@ -9,6 +9,5 @@
 - [Guide to Collections API in Vavr](http://www.baeldung.com/vavr-collections)
 - [Collection Factory Methods for Vavr](http://www.baeldung.com/vavr-collection-factory-methods)
 - [Introduction to Future in Vavr](http://www.baeldung.com/vavr-future)
-- [Introduction to VRaptor in Java](http://www.baeldung.com/vraptor)
 - [Introduction to Vavr’s Either](http://www.baeldung.com/vavr-either)
 - [Interoperability Between Java and Vavr](http://www.baeldung.com/java-vavr)