Use no-std instead of no_std in Cargo.toml (#1064)

Author: valenting

data-url/Cargo.toml

@@ -3,7 +3,7 @@ name = "data-url"
 version = "0.3.2"
 authors = ["Simon Sapin <simon.sapin@exyr.org>"]
 description = "Processing of data: URL according to WHATWG’s Fetch Standard"
-categories = ["no_std"]
+categories = ["no-std"]
 repository = "https://github.com/servo/rust-url"
 license = "MIT OR Apache-2.0"
 edition = "2018"

form_urlencoded/Cargo.toml

@@ -3,7 +3,7 @@ name = "form_urlencoded"
 version = "1.2.2"
 authors = ["The rust-url developers"]
 description = "Parser and serializer for the application/x-www-form-urlencoded syntax, as used by HTML forms."
-categories = ["no_std"]
+categories = ["no-std"]
 repository = "https://github.com/servo/rust-url"
 license = "MIT OR Apache-2.0"
 edition = "2018"

idna/Cargo.toml

@@ -3,7 +3,7 @@ name = "idna"
 version = "1.1.0"
 authors = ["The rust-url developers"]
 description = "IDNA (Internationalizing Domain Names in Applications) and Punycode."
-keywords = ["no_std", "web", "http"]
+keywords = ["no-std", "web", "http"]
 repository = "https://github.com/servo/rust-url/"
 license = "MIT OR Apache-2.0"
 autotests = false

percent_encoding/Cargo.toml

@@ -3,7 +3,7 @@ name = "percent-encoding"
 version = "2.3.2"
 authors = ["The rust-url developers"]
 description = "Percent encoding and decoding"
-categories = ["no_std"]
+categories = ["no-std"]
 repository = "https://github.com/servo/rust-url/"
 license = "MIT OR Apache-2.0"
 edition = "2018"