chore: add missing fields for publishing

gleam.toml

@@ -4,11 +4,10 @@ version = "1.0.0"
 # Fill out these fields if you intend to generate HTML documentation or publish
 # your project to the Hex package manager.
 #
-# description = ""
-# licences = ["Apache-2.0"]
-# repository = { type = "github", user = "", repo = "" }
-# links = [{ title = "Website", href = "" }]
-#
+description = "timestamp in Gleam"
+licences = ["Apache-2.0"]
+repository = { type = "custom", url = "https://git.mastodont.cat/pswsm/timestamps" }
+
 # For a full reference of all the available options, you can have a look at
 # https://gleam.run/writing-gleam/gleam-toml/.