Update README.md

Author: RyanDaDeng

README.md

@@ -21,7 +21,7 @@ Update: Vue component is ready for production usage. Please upgrade package vers
 
 A star would be a nice encouragement. ^.^
 
-Future improvement (Will be done in a 1-2 days, everything will still be compatible with all test cases):
+Future improvement (Will be done in 1-2 days, everything will still be compatible with all test cases):
 1. Minor advanced code decouple and performance improvement
 2. Add Comments