Readme update

Author: markus-perl

README.md

@@ -7,7 +7,7 @@
 build-ffmpeg
 ==========
 
-The FFmpeg build script provides an easy way to build a static FFmpeg on **macOS** and **Linux** with optional **non-free and GPL codecs** (--enable-gpl-and-non-free, see https://ffmpeg.org/legal.html) included.
+The FFmpeg build script provides an easy way to build a **static** FFmpeg on **macOS** and **Linux** with optional **non-free and GPL codecs** (--enable-gpl-and-non-free, see https://ffmpeg.org/legal.html) included.
 
 [![How-To build FFmpeg on MacOS](https://img.youtube.com/vi/Z9p3mM757cM/0.jpg)](https://www.youtube.com/watch?v=Z9p3mM757cM "How-To build FFmpeg on OSX")