Add hero

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

assets/sass/main.scss

@@ -4,9 +4,12 @@ $width-max: 60rem;
 
 @import "colors";
 @import "fonts";
-@import "size";
 @import "common";
 
+@import "image";
+
 @import "header";
 @import "posts";
+@import "content";
+@import "hero";
 @import "footer";