Changed Readme

README.md

 - [ulimit-poster.png](https://teespring.com/ulimit-linux)
 - [umbrella.png](https://teespring.com/umbrella-tux)
 - [usufructuarius.png](https://teespring.com/linux-user)
-- [why-o-windows.png](https://teespring.com/why-so-w)
+- [why-so-windows.png](https://teespring.com/why-so-w)
 
 For custom requests please create an issue or send me an [email](mailto:jstpcs@ya.ru).