minimal licence tag

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/Cargo.toml b/Cargo.toml
index 258e3caf0237c6e4de82d07a4d3972cf0a0005dd..1da34b361bc5cb394790c18e33a834bf00552cd1 100644 (file)
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,9 @@
 name = "z3-treefoil"
 version = "0.1.0"
 edition = "2021"
+licence = "GPL-3.0-opr-later"
+authors = ["Ian Jackson <ijackson@chiark.greenend.org.uk>"]
+license = "GPL-3.0-or-later"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html