Update dev manual link

neo4j-ogm-docs/src/main/asciidoc/introduction/index.adoc

@@ -91,7 +91,7 @@ The jumping off ground for learning about Neo4J is https://neo4j.com/[neo4j.com]
 
 * The https://neo4j.com/docs/[Neo4j documentation] introduces Neo4j and contains links to getting started guides, reference documentation and tutorials.
 * The https://neo4j.com/sandbox/[online sandbox] provides a convenient way to interact with a Neo4j instance in combination with the online https://neo4j.com//developer/get-started/[tutorial.]
-* Neo4J http://neo4j.com/docs/developer-manual/3.0/index.html#driver-manual-index[Java Bolt Driver] and the http://boltprotocol.org/[Bolt Protocol].
+* Neo4J https://neo4j.com/docs/developer-manual/3.1/drivers/[Java Bolt Driver].
 * Several https://neo4j.com/books/[books] available for purchase and https://www.youtube.com/neo4j[videos] to watch.
 
 [[introduction:ogm]]