Added public="true" to @Cache annotation examples

I spent a while trying to work out why my @Cache annotation wasn't having any effect, until I realised that the response wasn't being marked as public.

I've slightly modified the docs to add public="true" to the first couple of examples, and added public to the attributes table. This makes the first two examples "Just Work" by default.
merged branch eggfriedrice/patch-1 (PR #220)

This PR was merged into the master branch.

Discussion
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Added public="true" to @Cache annotation examples

I spent a while trying to work out why my @Cache annotation wasn't having any effect, until I realised that the response wasn't being marked as public.

I've slightly modified the docs to add public="true" to the first couple of examples, and added public to the attributes table. This makes the first two examples "Just Work" by default.

Commits
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2ad88e9 Added public="true" to @Cache annotation examples