cargo: update some fields

Cargo.toml

@@ -3,14 +3,14 @@ name = "csv"
 version = "1.1.6" #:version
 authors = ["Andrew Gallant <[email protected]>"]
 description = "Fast CSV parsing with support for serde."
-documentation = "http:https://burntsushi.net/rustdoc/csv/"
+documentation = "https:https://docs.rs/csv"
 homepage = "https://github.com/BurntSushi/rust-csv"
 repository = "https://github.com/BurntSushi/rust-csv"
 readme = "README.md"
 keywords = ["csv", "comma", "parser", "delimited", "serde"]
 license = "Unlicense/MIT"
 categories = ["encoding", "parser-implementations"]
-exclude = ["/.travis.yml", "/appveyor.yml", "/ci/*", "/scripts/*"]
+exclude = ["/.github", "/ci/*", "/scripts/*"]
 edition = "2021"
 
 [workspace]