Update README.md

Author: sagiegurari

README.md

@@ -2,7 +2,7 @@
 
 [![Continuous Integration](https://github.com/sagiegurari/c_string_buffer/workflows/Continuous%20Integration/badge.svg?branch=master)](https://github.com/sagiegurari/c_string_buffer/actions)
 [![Release](https://img.shields.io/github/v/release/sagiegurari/c_string_buffer)](https://github.com/sagiegurari/c_string_buffer/releases)
-[![license](https://img.shields.io/github/license/sagiegurari/c_string_buffer.svg)](https://github.com/sagiegurari/c_string_buffer/blob/master/LICENSE)
+[![license](https://img.shields.io/github/license/sagiegurari/c_string_buffer)](https://github.com/sagiegurari/c_string_buffer/blob/master/LICENSE)
 
 > A simple string buffer for C.