Include readme and licenses in crates.io archive

Fixes #772.

serde/Cargo.toml

@@ -7,10 +7,10 @@ description = "A generic serialization/deserialization framework"
 homepage = "https://serde.rs"
 repository = "https://github.com/serde-rs/serde"
 documentation = "https://docs.serde.rs/serde/"
-readme = "../README.md"
 keywords = ["serde", "serialization", "no_std"]
 categories = ["encoding"]
-include = ["Cargo.toml", "src/**/*.rs"]
+readme = "../README.md"
+include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
 
 [badges]
 travis-ci = { repository = "serde-rs/serde" }

serde/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

serde/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

serde/README.md

@@ -0,0 +1 @@
+../README.md