article page size is 12

next.config.js

@@ -4,7 +4,7 @@ const withSass = require('@zeit/next-sass')
 module.exports = withCss(withSass({
     exportTrailingSlash: true,
     env: {
-        APP_ARTICLES_PAGE_SIZE: 15,
+        APP_ARTICLES_PAGE_SIZE: 12,
     },
     webpack(config) {
         config.resolve.modules.push(__dirname)