diff --git a/Cargo.toml b/Cargo.toml
index f0802e5..9e63f72 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ description = "Safe FFmpeg wrapper (FFmpeg 4 compatible fork of the ffmpeg crate
 documentation = "https://docs.rs/ffmpeg-next"
 homepage = "https://github.com/zmwangx/rust-ffmpeg#readme"
 repository  = "https://github.com/zmwangx/rust-ffmpeg"
+readme = "README.md"
 keywords    = ["ffmpeg", "multimedia", "video", "audio"]
 
 [features]
diff --git a/README b/README
deleted file mode 100644
index f7de53b..0000000
--- a/README
+++ /dev/null
@@ -1 +0,0 @@
-This fork is compatible with FFmpeg 4.0 (tested with 4.0.2).
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d9cbb54
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+This is a fork of the [ffmpeg](https://crates.io/crates/ffmpeg) crate by [meh.](https://github.com/meh/rust-ffmpeg), compatible with FFmpeg major version 4 (tested against 4.0.2). FFmpeg4 code is guarded by the `ffmpeg4` feature, enabled by the default. Disable `ffmpeg4` to compile against FFmpeg 3.4 (tested against 3.4.4). Earlier versions of FFmpeg are not officially supported. See my command line tool `metadata`'s [`Cargo.toml`](https://github.com/zmwangx/metadata/blob/master/Cargo.toml) for example usage when supporting both major versions of FFmpeg.