Update footer.html

Adding back Twitter logo so that we can commit the updates to the footer links and then revisit the logo issues at a later date.

Author: AndraMeer

layouts/partials/footer.html

@@ -6,7 +6,7 @@
         </a>
         <div class="footer__social">
           <a aria-label="x" class="footer__socialIcon" margin-top: -.15em href="https://x.com/maxmind">
-            {{ readFile "assets/x logo.svg" | safeHTML }}
+            {{ readFile "assets/FaTwitterSquare.svg" | safeHTML }}
           </a>
           <a aria-label="LinkedIn" class="footer__socialIcon" href="https://www.linkedin.com/company/maxmind">
             {{ readFile "assets/FaLinkedin.svg" | safeHTML }}