style(splash): tighten up the index paragraphs a little for readability

Author: skipjack

components/splash/splash-style.scss

@@ -10,6 +10,11 @@
       background-color:#f3f3f3;
     }
 
+    p {
+      margin: 0 auto;
+      max-width: 800px;
+    }
+
     .container {
       padding:5em 1em;