Update examples README to point to helidon-examples repository

examples/README.md

@@ -4,42 +4,5 @@
 
 # Helidon Examples
 
-Welcome to the Helidon Examples! If this is your first experience with
-Helidon we recommend you start with our
-[quickstart](https://helidon.io/docs/v2/#/about/03_prerequisites)
-That will quickly get you going with your first Helidon application.
+Helidon 3 examples have been moved to the [helidon-examples](https://github.com/helidon-io/helidon-examples/tree/helidon-3.x) repository.
 
-After that you can come back here and dig into the examples. To access
-these examples we recommend checking out from a released tag. For example:
-
-```
-git clone [email protected]:oracle/helidon.git
-cd helidon
-git checkout tags/2.0.0
-```
-
-Our examples are Maven projects and can be built and run with
-Java 11 or newer -- so make sure you have those:
-
-```
-java -version
-mvn -version
-```
-
-# Building an Example
-
-Each example has a `README` that you will follow. To build most examples
-just `cd` to the directory and run `mvn package`:
-
-```
-cd examples/microprofile/hello-world-explicit
-mvn package
-```
-
-Usually the example will produce an application jar file that you can run:
-
-```
-java -jar target/example-name.jar
-```
-
-But always see the example's `README` for details.