Fix embedded gist indentation

closes #204
- set text-rendering to auto inside embedded gist

assets/css/screen.css

@@ -1460,6 +1460,7 @@ body:not(.post-template) .post-title {
 .gist table {
     margin: 0;
     font-size: 1.4rem;
+    text-rendering: auto;
 }
 .gist td {
     line-height: 1.4;