chore: improve Cargo.toml files and prepare for publishing

Author: aqrln

example/Cargo.toml

@@ -2,6 +2,7 @@
 name = "napi-example"
 version = "0.1.0"
 authors = ["Alexey Orlenko <[email protected]>"]
+publish = false
 
 [lib]
 crate-type = ["staticlib"]

napi-derive/Cargo.toml

@@ -1,7 +1,18 @@
 [package]
-authors = ["Alexey Orlenko <[email protected]>"]
 name = "napi-derive"
 version = "0.1.0"
+authors = ["Alexey Orlenko <[email protected]>"]
+license = "MIT"
+description = "#[derive(NapiArgs)] for napi crate"
+repository = "https://github.com/aqrln/napi-rs"
+readme = "README.md"
+keywords = ["node.js", "n-api", "addons", "bindings"]
+categories = ["api-bindings", "development-tools::ffi"]
+
+[badges]
+travis-ci = { repository = "aqrln/napi-rs" }
+appveyor = { repository = "aqrln/napi-rs" }
+maintenance = { status = "experimental" }
 
 [dependencies]
 quote = "0.3.15"

napi-sys/Cargo.toml

@@ -1,6 +1,17 @@
 [package]
-authors = ["Alexey Orlenko <[email protected]>"]
 name = "napi-sys"
 version = "0.1.0"
+authors = ["Alexey Orlenko <[email protected]>"]
+license = "MIT"
+description = "Low-level bindings to Node.js N-API"
+repository = "https://github.com/aqrln/napi-rs"
+readme = "README.md"
+keywords = ["node.js", "n-api", "addons", "bindings"]
+categories = ["external-ffi-bindings"]
+
+[badges]
+travis-ci = { repository = "aqrln/napi-rs" }
+appveyor = { repository = "aqrln/napi-rs" }
+maintenance = { status = "experimental" }
 
 [dependencies]

napi/Cargo.toml

@@ -1,7 +1,21 @@
 [package]
 name = "napi"
 version = "0.1.0"
-authors = ["Alexey Orlenko <[email protected]>"]
+authors = [
+  "Alexey Orlenko <[email protected]>",
+  "Dmytro Nechai <[email protected]>",
+]
+license = "MIT"
+description = "High-level bindings to Node.js N-API"
+repository = "https://github.com/aqrln/napi-rs"
+readme = "README.md"
+keywords = ["node.js", "n-api", "addons", "bindings"]
+categories = ["api-bindings"]
+
+[badges]
+travis-ci = { repository = "aqrln/napi-rs" }
+appveyor = { repository = "aqrln/napi-rs" }
+maintenance = { status = "experimental" }
 
 [dependencies]
-napi-sys = { path = "../napi-sys" }
+napi-sys = { version = "0.1.0", path = "../napi-sys" }