Fix footnotes line-height and return-link styling

assets/css/screen.css

@@ -1104,6 +1104,7 @@ body:not(.post-template) .post-title {
 .footnotes {
     font-style: italic;
     font-size: 1.3rem;
+    line-height: 1.6em;
 }
 
 .footnotes li {
@@ -1114,6 +1115,10 @@ body:not(.post-template) .post-title {
     margin: 0;
 }
 
+.footnotes p a:last-child {
+    text-decoration: none;
+}
+
 
 /* The author credit area after the post */
 .post-footer {