fix trademark guidelines link

source/shared/_footer.html.erb

@@ -4,7 +4,7 @@
       <%= image_tag 'logo.svg', class: 'logo-small', alt: "Steeltoe Logo" %>
       <a href="http://dotnetfoundation.org"><img align="right" src="/images/dot_net_foundation_logo.png" width="150" height="75" alt="dotNET Foundation Logo"/></a>
       <br>
-      <span class="mb0 h5">© 2017-2018 <a class="text-decoration-none" href="http://www.pivotal.io/" target="_blank">Pivotal Software</a>, Inc. All Rights Reserved.&nbsp;&bullet;&nbsp;<a class="text-decoration-none" href="http://www.pivotal.io/terms-of-use" target="_blank">Terms of Use</a>&nbsp;&bullet;&nbsp;<a class="text-decoration-none" href="http://www.pivotal.io/privacy-policy" target="_blank">Privacy</a>&nbsp;&bullet;&nbsp;<a class="text-decoration-none" href="SteelToeTrademarkGuidelines.pdf" target="_blank">Trademark Guidelines</a>&nbsp;&bullet;
+      <span class="mb0 h5">© 2017-2018 <a class="text-decoration-none" href="http://www.pivotal.io/" target="_blank">Pivotal Software</a>, Inc. All Rights Reserved.&nbsp;&bullet;&nbsp;<a class="text-decoration-none" href="http://www.pivotal.io/terms-of-use" target="_blank">Terms of Use</a>&nbsp;&bullet;&nbsp;<a class="text-decoration-none" href="http://www.pivotal.io/privacy-policy" target="_blank">Privacy</a>&nbsp;&bullet;&nbsp;<a class="text-decoration-none" href="/SteeltoeTrademarkGuidelines.pdf" target="_blank">Trademark Guidelines</a>&nbsp;&bullet;
 <style> #teconsent img{content:url(https://d1fto35gcfffzn.cloudfront.net/images/Spacer.gif)} #teconsent a:after{content:"Cookie Preferences"} #teconsent a {margin-left: 3px;}</style><div id="teconsent" style='display:inline-block;'></div>
 <script async="async" src="//consent.trustarc.com/notice?domain=pivotal.com&c=teconsent&js=nj" crossorigin=""></script></span>
       <ul class="list-reset mt1 p0">