add a paragraph in README about bindgen-static and bindgen-runtime

README.md

@@ -60,3 +60,13 @@ The feature `mt_static` will request the library to be built with [/MT](https://
 flag, which results in library using the static version of the run-time library.
 *This can be useful in case there's a conflict in the dependecy tree between different
 run-time versions.*
+
+## Switch between static and dynamic linking for bindgen (features `bindgen-static` and `bindgen-runtime`)
+
+The feature `bindgen-runtime` will enable the `runtime` feature of bindgen, which dynamically
+links to libclang. This is suitable for most platforms, and is enabled by default.
+
+The feature `bindgen-static` will enable the `static` feature of bindgen, which statically
+links to libclang. This is suitable for musllinux platforms, such as Alpine linux.
+To build on Alpine linux for example, build with
+`--no-default-features --features bindgen-static,other-features-1,other-features-2`.