Update README.md

Author: Zuzu-Typ

README.md

@@ -1,2 +1,35 @@
 # xiph-static-build
 Repository that creates statically linked libraries for ogg, vorbis, opus and flac
+
+## Build
+First you need to configure the project:
+```sh
+cmake -B build
+```
+
+Then you can build it:
+```sh
+cmake --build build --config Release
+```
+
+The generated static libraries can be found in `build/lib`.
+
+Libraries built on Windows:
+- FLAC.lib
+- ogg.lib
+- opus.lib
+- opusenc.lib
+- opusfile.lib
+- vorbis.lib
+- vorbisenc.lib
+- vorbisfile.lib
+
+Libraries built on Linux / Mac:
+- libFLAC.a
+- libogg.a
+- libopus.a
+- libopusenc.a
+- libopusfile.a
+- libvorbis.a
+- libvorbisenc.a
+- libvorbisfile.a