The E2E test is not a complete example

[erikmartino]

What happened?

The README.md says to look in the E2E test for a full example. If I do that and create a gradle project
with the configuration

...
apply plugin: 'com.palantir.graal'
graal {
    mainClass 'com.example.FooApplication'
    outputName 'foo'
}
....

then the output of ./gradlew nativeImage is

* Where:
Build file '/Users/luser/git/foo/build.gradle' line: 12

* What went wrong:
A problem occurred evaluating project ':foo'.
> Plugin with id 'com.palantir.graal' not found.

This is as expected, however the README.md leads one to believe this is a full example.

What did you want to happen?

Let the README.md link to a standalone project as an example, not a test in the gradle-graal repo.