#235-fix README.md typos

fixed one main typo.

Author: schmouk

README.md

@@ -1,7 +1,7 @@
 # Library cpp-strings
  [![license](http://img.shields.io/github/license/schmouk/pythonic-cpp-strings.svg?style=plastic&labelColor=blueviolet&color=lightblue)](https://github.com/schmouk/pythonic-cpp-strings/license)  [![Latest release](http://img.shields.io/github/release/schmouk/pythonic-cpp-strings.svg?style=plastic&labelColor=blueviolet&color=success)](https://github.com/schmouk/pythonic-cpp-strings/releases)  [![code_coverage](https://img.shields.io/badge/code_coverage-100%25-success?style=plastic&labelColor=blueviolet)]()  [![tests](https://img.shields.io/badge/tests-passing-success?style=plastic&labelColor=blueviolet)]()
 
-### What if c++ strings where as easy to use as Python strings?
+### What if c++ strings were as easy to use as Python strings?
 
 Let's just use c++ strings as are Python ones, with same API or as similar API as possible.  
 Library **cpp-strings** is fully templated. Just download header file `cppstrings.h` and put it anywhere in your project. Notice: all of its stuff is declared and defined in namespace `pcs` - which stands for **P**ythonic **C**++ **S**trings.