title: Activating / launching the google chrome extension with a keyboard shortcut
body: <p>If in the tab <code>development tools</code> -><code>extensions</code> -> <code>keyboard shortcuts</code> I added a shortcut e.g. <kbd>Ctrl</kbd> + <kbd>b</kbd><br>
  Then if someone else installs the extension on their computer this shortcut from the machine will work, Will anyone have to add it again in the 'keyboard shortcuts' tab? I think I once read that the shortcut to activate the extension can be set in the file <code>manifest.json</code>.<br>
  Does anyone know how to set this shortcut in the <code>manifest.json</code> file?</p>