Render monospace text at 90% of the parent font-size

app/assets/stylesheets/framework/typography.scss

@@ -220,6 +220,7 @@ pre {
 
 .monospace {
   font-family: $monospace_font;
+  font-size: 90%;
 }
 
 code {

app/assets/stylesheets/pages/merge_requests.scss

@@ -136,7 +136,7 @@
   font-family: $monospace_font;
   font-weight: bold;
   overflow: hidden;
-  font-size: 14px;
+  font-size: 90%;
   margin: 0 3px;
 }