Update FAQ metadata

Author: iluwatar

faq.md

@@ -1,6 +1,8 @@
 ---
 layout: page
-title: FAQ
+link-title: FAQ
+title: FAQ - Java Design Patterns
+description: design patterns java program best practises tutorials design principles development examples coders programmers developers architects paradigms object oriented systems architecture solutions problems
 permalink: /faq/
 icon: fa-question
 page-index: 5