am cd579c57: wording tweak to brand guidelines

<p>When referring to the mobile experience, use "Google Play" unless the text is clearly

instructional for the user. For example, a marketing headline might read "Download our

games on Google Play™," but instructional text woud read "Download our games using the Google

games on Google Play™," but instructional text would read "Download our games using the Google

Play™ Store app."

 <p>Any use of the Google Play name or icon needs to include this

<p>You may use the Google Play Store icon, but you may not modify it.</p>

<p>When labeling or referring to the icon, the name can be either the full app

name, Google Play Store, or the app display name, Play Store.</p>

<p>As mentioned above, when referring to the Google Play Store app in copy, use the full name:

"Google Play Store." However, when labelling the Google Play Store icon directly, it's OK to use

"Play Store" without "Google" (which is how the icon is labelled on a device).</p>

<h4>Google Play badge</h4>