Cargo.toml fix license

Author: mlin

bindings/rust/Cargo.toml.in

@@ -4,7 +4,7 @@ version = "{{GENOMICSQLITE_VERSION}}"
 description = "Genomics Extension for SQLite"
 authors = ["Mike Lin <dna@mlin.net>"]
 edition = "2018"
-license = "Apache"
+license = "Apache-2.0"
 repository = "https://github.com/mlin/GenomicSQLite"
 documentation = "https://mlin.github.io/GenomicSQLite"
 include = ["src/**/*", "Cargo.toml", "libgenomicsqlite.*"]