Docs site dialog example plunker is broken

[KroneCorylus]

Bug, feature request, or proposal:

The Dialog Component in the plunker Demo throws exeption: "The selector "dialog-overview-example-dialog" did not match any elements".

What is the expected behavior?

App work just fine but throws exception.

What are the steps to reproduce?

Go to Documentarion about Dialog Component and click on Edit on Plunker

What is the use-case or motivation for changing an existing behavior?

Because it confuses beginners like me

Is there anything else we should know?

Fix:
change

bootstrap: [DialogResultExample, DialogResultExampleDialog],

for

bootstrap: [DialogResultExample],
entryComponents: [DialogResultExampleDialog],

in main.ts file

[M-a-c]

Sort of related to #2934 (multi file demos don't list other files), multi component(selector) demos are broken on plunkr.

[ericgundrum]

@kronetorres, thanks for the fix. This seems relevant to any project using MdDialog, more than just the plunker example.

[ghost]

@kronetorres @jelbourn I guess this issue can be closed.

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