Updating graphql-java documentation links to point to v16

Author: setchy

content/servlet/getting-started/index.md

@@ -60,7 +60,7 @@ Add the `graphql-java-servlet` dependency to your `dependencies` section:
 
 Create a servlet class extending `SimpleGraphQLHttpServlet`. This is the basic "Hello world" example. It creates
 the GraphQL Query `{ hello }` that can be executed and which will respond with "world". It creates the GraphQL
-schema programmatically as shown in the [getting started example](https://www.graphql-java.com/documentation/v11/getting-started/) from `graphql-java`.
+schema programmatically as shown in the [getting started example](https://www.graphql-java.com/documentation/v16/getting-started/) from `graphql-java`.
 
 ```java
 @WebServlet(name = "HelloServlet", urlPatterns = {"graphql/*"}, loadOnStartup = 1)

content/servlet/servlet-listener/index.md

@@ -27,11 +27,11 @@ public class MyServlet extends GraphQLHttpServlet {
 ## Instrumentation
 
 The Servlet Listener listens to the servlet request, but not to the GraphQL query execution.
-If you want to listen to that you should use the [Instrumentation](https://www.graphql-java.com/documentation/v11/instrumentation/)
+If you want to listen to that you should use the [Instrumentation](https://www.graphql-java.com/documentation/v16/instrumentation/)
 provided by GraphQL Java. You can extend [SimpleInstrumentation](https://github.com/graphql-java/graphql-java/blob/master/src/main/java/graphql/execution/instrumentation/SimpleInstrumentation.java)
 to quickly create a custom implementation and use it when creating the `GraphQLConfiguration`.
 
-See the [GraphQL Java documentation](https://www.graphql-java.com/documentation/v11/instrumentation/)
+See the [GraphQL Java documentation](https://www.graphql-java.com/documentation/v16/instrumentation/)
 for details on creating custom instrumentations.
 
 ```java

content/spring-boot/directives/index.md

@@ -10,7 +10,7 @@ menu:
     url: /spring-boot/directives/
 ---
 
-See [Schema Directives](https://www.graphql-java.com/documentation/v11/sdl-directives/)
+See [Schema Directives](https://www.graphql-java.com/documentation/v16/sdl-directives/)
 for a detailed explanation about directives including examples on how to define
 them in the SDL and to create the required classes.
 

content/tools/directives/index.md

@@ -9,7 +9,7 @@ menu:
     url: /tools/directives/
 ---
 
-See [Schema Directives](https://www.graphql-java.com/documentation/v11/sdl-directives/)
+See [Schema Directives](https://www.graphql-java.com/documentation/v16/sdl-directives/)
 for a detailed explanation about directives including examples on how to define
 them in the SDL and to create the required classes.