docs: add lf trademarks note (#6558)

Fixes #6557

Signed-off-by: Charlie Egan <[email protected]>

Author: charlieegan3

docs/website/layouts/index.html

@@ -1562,16 +1562,23 @@ <h4>CLI and REPL for complete control</h4>
       <div class="row">
         <div class="col-12">
           <div class="footer-text">
-            Open Policy Agent is a Cloud Native Computing Foundation graduated
-            project.
+            Open Policy Agent is a Cloud Native Computing Foundation
+            Graduated project.
           </div>
           <div class="footer-logo pb-4">
             <img src="img/cloud-native-logo.png">
           </div>
           <div class="footer-bottom">
-            © {{ now.Format "2006"}} Open Policy Agent contributors. Licensed under the Apache
-            License, Version 2.0. For information about
-            contributing, <a href="/docs/latest/contributing/">see documentation</a>.
+            <p>
+              © {{ now.Format "2006"}} Open Policy Agent contributors.
+              Licensed under the Apache License, Version 2.0. See the
+              <a href="/docs/latest/contributing/">contributing documentation</a>
+              for information about contributing.
+            </p>
+            <p>
+              The Linux Foundation has registered trademarks and uses trademarks. For a list of trademarks of The Linux Foundation,
+              please see our <a href="https://www.linuxfoundation.org/legal/trademark-usage">Trademark Usage page</a>.
+            </p>
           </div>
         </div>
       </div>

docs/website/static/css/styles.css

@@ -764,6 +764,10 @@ h4 {
     color: #fff;
 }
 
+.footer-bottom a {
+    color: white;
+}
+
 .policy-sharing {
     position: relative;
 }