Fill example site with general content

Fix markdown for italic and other font styles
Improve sample pages and posts in example site
Update example site config

Resolves #5 :)

markdown.less

@@ -110,6 +110,14 @@ li {
 
 // Miscenllaneous
 
+em {
+    font-style: italic;
+}
+
+strong {
+    font-weight: 700;
+}
+
 hr {
     position: relative;
     margin: 1.75rem 0;