fix: rm newline in version

src/docker.rs

@@ -10,7 +10,7 @@ impl Docker {
             .expect("unable to obtain Docker version");
         let x = String::from_utf8(version.stdout).unwrap();
         let x: Vec<&str> = x.split("Docker version ").collect();
-        x.get(1).unwrap().to_string()
+        x.get(1).unwrap().trim().to_string()
     }
 
     pub fn run_container(name: &str, img: &str) {