give 'li code' the same styles as 'p code'

contents/css/main.css

@@ -317,7 +317,7 @@ pre code {
   line-height: 1.1;
 }
 
-p code {
+p code, li code {
   padding: 0.1em 0.3em 0.2em;
   border-radius: 0.3em;
   position: relative;