readme take credit for improvements

README.md

@@ -7,8 +7,7 @@ This repository contains an example Golang program used to illustrate
 table-driven tests, automated build, and unit test code coverage.
 
 The library provides a simple function for converting Roman numerals
-(in string form) into numbers. At the moment it works for valid Roman
-numerals, but does not flag any invalid input.
+(in string form) into numbers. It also flags invalid string input.
 
 See the accompanying LICENSE file for usage information.