Merge pull request w3c#226 from ewilligers/security

[motion-1] Privacy and Security paragraph

Author: Jihye Hong

motion-1/Overview.bs

@@ -1203,6 +1203,10 @@ The computed value of <<angle>> is added to the computed value of ''auto'' or ''
 This is a shorthand property for setting 'offset-position', 'offset-path', 'offset-distance', 'offset-rotate' and 'offset-anchor'.
 Omitted values are set to their initial values.
 
+<h2 id="priv-sec">Privacy and Security Considerations</h2>
+
+This specification introduces no new security or privacy considerations.
+
 <h2 class="no-num" id="changes">Changes</h2>
 
 <p><em>This section is non-normative.</em>
@@ -1226,8 +1230,7 @@ href="https://www.w3.org/TR/2015/WD-motion-1-20150409/">9 April 2015 First Publi
 
 <h2 class=no-num id=acknowledgments>Acknowledgments</h2>
 
-<p>The editors would like to thank to Eric Willigers for contributing to this specification.
-Thanks to
+<p>Thanks to
 fantasai,
 Hyojin Song,
 and