Update README.md

tjd229 · web-flow · commit c70ba6a6efac · 2017-10-20T16:42:06.000+09:00
diff --git a/README.md b/README.md
@@ -5,7 +5,7 @@
 >codeforce : [codeforce.com](codeforce.com)  
 >UVa : https://uva.onlinejudge.org/   
 >SPOJ : http://www.spoj.com/  
->CS Academy : https://csacademy.com/  
+>CSA : https://csacademy.com/  
 
     
 # Category description  
