Slightly better documentation

src/bin/run.rs

@@ -6,7 +6,8 @@ use structopt::{clap, StructOpt};
 
 #[structopt(
     name = "run",
-    about = "Run a benchmark on an onnx model. Each worker runs the model `runs` times in a loop.",
+    about = "Run a benchmark on an onnx model. Each worker runs the model in a loop in its own
+    thead. Once done it will print the average time to run the model.",
     setting = clap::AppSettings::ColoredHelp
 )]
 #[derive(StructOpt)]