Update base.html

Added Corporate Sponsorship in About menu and Footer per @bobpaulin 

Also removed Trademark Policy from Footer to align with https://github.com/apache/www-site/pull/289
diff --git a/theme/apache/templates/base.html b/theme/apache/templates/base.html
index bfe9249..b0abd53 100644
--- a/theme/apache/templates/base.html
+++ b/theme/apache/templates/base.html
@@ -149,6 +149,7 @@
               <ul class="dropdown-menu" role="menu">
                 <li><a href="/foundation/">About</a></li>
                 <li><a href="/foundation/sponsors">Our Sponsors</a></li>
+		<li><a href="/foundation/sponsorship">Corporate Sponsorship</a></li>
                 <li><a href="/foundation/individual-supporters">Individual Supporters</a></li>
                 <li><a href="/foundation/leadership">Leadership</a></li>
                 <li><a href="/foundation/members">Members</a></li>
@@ -241,7 +242,6 @@
             <li><a href="/foundation/how-it-works">How the ASF Works</a></li>
             <li><a href="/theapacheway/">The Apache Way</a></li>
             <li><a href="/legal/">Legal &amp; Trademark</a></li>
-            <li><a href="/foundation/marks/">Trademark Policy</a></li>
             <li><a href="/licenses">Licenses</a></li>
             <li><a href="/foundation/glossary">Glossary</a></li>
             <li><a href="/foundation/faq">FAQ</a></li>
@@ -268,6 +268,7 @@
           <ul class="list-unstyled white" role="menu">
             <li><a href="/foundation/">About</a></li>
             <li><a href="/foundation/sponsors">Our Sponsors</a></li>
+	    <li><a href="/foundation/sponsorship">Corporate Sponsorship</a></li>
             <li><a href="/foundation/individual-supporters">Individual Supporters</a></li>
             <li><a href="/foundation/leadership">Leadership</a></li>
             <li><a href="/foundation/members">Members</a></li>