ISTWCMS-3505: adding uwaterloo logo to header

source/_patterns/04-components/site-logo/_site-logo.scss

@@ -2,7 +2,7 @@
 // Styles for Site logo.
 
 .uw-site-logo {
-  background: url('../images/logos/uwaterloo-logo.svg') 0 50% no-repeat;
+  background: url('../../source/images/logos/uwaterloo-logo.svg') 0 50% no-repeat;
   background-color: #000;
   background-size: contain;
   color: #000;