Add hero

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

assets/sass/content.scss

@@ -0,0 +1,11 @@
+.content {
+  max-width: $width-content;
+  margin: 0 auto;
+  padding: 2rem;
+}
+
+@media (max-width: $width-mobile) {
+  .content {
+    padding: 1rem;
+  }
+}