Bump version to v0.2.0 and add docs link

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "opus"
-version = "0.1.1"
+version = "0.2.0"
 authors = ["Tad Hardesty <[email protected]>"]
 
 description = "Safe Rust bindings for libopus"
@@ -9,6 +9,7 @@ license = "MIT/Apache-2.0"
 keywords = ["opus", "codec", "voice", "sound", "audio"]
 
 repository = "https://github.com/SpaceManiac/opus-rs"
+documentation = "https://wombat.platymuus.com/rustdoc/opus_0.2.0/"
 
 [dependencies]
 opus-sys = "0.2.0"

README.md

@@ -1,4 +1,4 @@
-# opus-rs [![](https://meritbadge.herokuapp.com/opus)](https://crates.io/crates/opus)
+# opus-rs [![](https://meritbadge.herokuapp.com/opus)](https://crates.io/crates/opus) [![](https://img.shields.io/badge/docs-online-2020ff.svg)](https://wombat.platymuus.com/rustdoc/opus_0.2.0/)
 
 Safe Rust bindings for libopus. The rustdoc (available through `cargo doc`)
 includes brief descriptions for methods, and detailed API information can be