Merge branch '13355-definition-margin' into 'master'

Resolve "reStructuredText rendering of definition lists"

Closes #13355

See merge request gitlab-org/gitlab-ce!16202

app/assets/stylesheets/framework/typography.scss

@@ -178,6 +178,10 @@
     font-weight: inherit;
   }
 
+  dd {
+    margin-left: $gl-padding;
+  }
+
   ul,
   ol {
     padding: 0;