fix: iluwatar#2223 issue.

mm-saiful6854 · mm-saiful6854 · commit e0be6ecbd6f9 · 2023-11-06T12:38:45.000+06:00
modify readme.md file
- adjust title, category, language, and tag
diff --git a/double-buffer/README.md b/double-buffer/README.md
@@ -1,11 +1,11 @@
----  
+---
 title: Double Buffer 
 category: Behavioral
 language: en
 tag:  
  - Performance
  - Game programming  
----  
+---
   
 ## Intent  
 Double buffering is a term used to describe a device that has two buffers. The usage of multiple 
