diff --git a/STL cpp.txt b/STL cpp.txt
index b3b3808..d260904 100644
--- a/STL cpp.txt	
+++ b/STL cpp.txt	
@@ -1,3 +1,4 @@
 for vectors--
 
-sort( a.begin() , a.end() );
+sort( a.begin() , a.end() );        // sort a vector
+