adds categories to metadata

Author: dcuddeback

serial-core/Cargo.toml

@@ -9,6 +9,7 @@ documentation = "https://dcuddeback.github.io/serial-rs/serial-core/"
 license = "MIT"
 readme = "README.md"
 keywords = ["serial", "hardware", "system", "RS232"]
+categories = ["hardware-support"]
 
 [dependencies]
 libc = "0.2"

serial-unix/Cargo.toml

@@ -9,6 +9,7 @@ documentation = "https://dcuddeback.github.io/serial-rs/serial-unix/"
 license = "MIT"
 readme = "README.md"
 keywords = ["serial", "hardware", "system", "RS232"]
+categories = ["hardware-support", "os", "os::unix-apis"]
 
 [dependencies]
 serial-core = { version = "0.4", path = "../serial-core" }

serial-windows/Cargo.toml

@@ -9,6 +9,7 @@ documentation = "https://dcuddeback.github.io/serial-rs/serial-windows/"
 license = "MIT"
 readme = "README.md"
 keywords = ["serial", "hardware", "system", "RS232"]
+categories = ["hardware-support", "os", "os::windows-apis"]
 
 [dependencies]
 serial-core = { version = "0.4", path = "../serial-core" }

serial/Cargo.toml

@@ -9,6 +9,7 @@ documentation = "https://dcuddeback.github.io/serial-rs/serial/"
 license = "MIT"
 readme = "README.md"
 keywords = ["serial", "hardware", "system", "RS232"]
+categories = ["hardware-support", "os"]
 
 [dependencies]
 serial-core = { version = "=0.4.0", path = "../serial-core" }