Fix docs links to example source code

Signed-off-by: Alexander Kriegisch <Alexander@Kriegisch.name>

docs/index.adoc

@@ -14,8 +14,7 @@ materials, see https://eclipse.org/aspectj. Not all of these materials have been
 xref:quickref/quick.pdf[Quick Reference (1.2.1)], xref:adk15notebook/index.adoc[AspectJ 5 Developer's Notebook],
 xref:progguide/index.adoc[programming], xref:devguide/index.adoc[development] and
 xref:pdguide/index.adoc[problem diagnosis] guides, link:runtime-api/index.html[runtime API],
-link:weaver-api/index.html[weaver API] and
-link:https://github.com/eclipse-aspectj/aspectj/tree/master/docs/examples[example code]
+link:weaver-api/index.html[weaver API] and link:examples[example code]
 
 |xref:#distributions[Distributions]
 |https://eclipse.org/aspectj[AspectJ] development environment support for https://eclipse.org/ajdt[Eclipse]
@@ -131,7 +130,7 @@ xref:release/README-1.2.adoc[1.2], xref:release/README-1.1.adoc[1.1].
 |xref:release/porting.adoc[Porting guide] (historical)
 |Porting guide for historical releases to 1.2
 
-|link:https://github.com/eclipse-aspectj/aspectj/tree/master/docs/examples[Examples]
+|link:examples[Examples]
 |AspectJ code to demonstrate some language features and implement JavaBean properties, the Observer pattern, a tracing
 library, and a game application where aspects handle display updating
 
@@ -198,8 +197,7 @@ See the xref:faq/faq.adoc#ajcbugs[FAQ entry] for instructions on submitting comp
 
 To learn the AspectJ language, read the xref:progguide/index.adoc[Programming Guide], keeping the
 xref:progguide/semantics.adoc[Semantics appendix] nearby as the best reference for AspectJ usage. Focus initially on the
-join point model and pointcuts, concepts AOP adds to OOP. To read about how the
-link:https://github.com/eclipse-aspectj/aspectj/tree/master/docs/examples[examples] work, see the
+join point model and pointcuts, concepts AOP adds to OOP. To read about how the link:examples[examples] work, see the
 xref:progguide/examples.adoc[Examples] section in the xref:progguide/index.adoc[Programming Guide]. View and navigate
 the crosscutting structure using https://eclipse.org/ajdt[AJDT].