doc: Use README.md as crate root API documentation

jhg · jhg · commit dfa9421f297a · 2021-04-18T21:35:17.000+02:00
diff --git a/src/lib.rs b/src/lib.rs
@@ -1,6 +1,5 @@
-//! FFI opaque pointers.
-//!
-//! FFI to use Rust objects from C as opaque pointer.
+#![feature(external_doc)]
+#![doc(include = "../README.md")]
 
 #![allow(unsafe_code)]
 #![warn(missing_docs)]
