Merge pull request #158 from rage/structopt

use structopt

Author: Heliozoa

tmc-langs-cli/Cargo.toml

@@ -22,6 +22,7 @@ schemars = "0.8"
 serde = "1"
 serde_json = "1"
 smol = "1"
+structopt = "0.3"
 tempfile = "3"
 thiserror = "1"
 toml = "0.5"