chore: fix metadata in Cargo.toml (#206)

Author: koyashiro

Diff for: Cargo.toml

@@ -3,12 +3,12 @@ name = "vpm-repos-gen"
 version = "1.6.1"
 authors = ["koyashiro <[email protected]>"]
 edition = "2021"
-description = "vpm repos generator"
+description = "vpm repos generator."
 readme = "README.md"
 homepage = "https://github.com/koyashiro/vpm-repos-gen"
 repository = "https://github.com/koyashiro/vpm-repos-gen"
 license = "MIT OR Appach-2.0"
-keywords = ["base64", "base64url"]
+keywords = ["vpm"]
 categories = ["command-line-utilities"]
 
 [dependencies]