Install button

## Installing

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        <a href="http://marketplace.eclipse.org/marketplace-client-intro?mpc_install=1479767" title="Drag and drop onto a running Eclipse Main Toolbar to install JDT Spelling">
          <img src="http://marketplace.eclipse.org/misc/installbutton.png">
        </a>
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        ← Drag it onto your Eclipse Main Toolbar to install!</td>
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or use `http://stuarthendren.net/update` in Help -> Install New Software ... Dialog.