Long urls or links extend beyond content and overlap sidebar (#259)

* Add an overflow-wrap to all links

data/webpack_assets.json

 {
   "app": {
     "js": "js/app.3fc0f988d21662902933.js",
-    "css": "css/app.e6e75cdafe2e909dacfabeb26857f994.css"
+    "css": "css/app.4fc0b62e4b82c997bb0041217cd6b979.css"
   }
 }

src/css/_styles.css

   border-left: 4px solid #ccc;
   padding-left: 1rem;
 
+}
+
+.nested-links a{
+  overflow-wrap: break-word;
 }