Add a line wrapping css to not overflow on little screens, add mini_racer to dependencies to build

source/stylesheets/site.css.scss

@@ -125,7 +125,7 @@ footer {
 body > main {
   grid-area: cont;
   line-height: 1.7;
-
+  width: 100%;
   ul {
     padding: 0 7.5vw;
     li {