Add a readme

src/command.rs

@@ -92,7 +92,7 @@ pub fn get_packages_folder(opt: &Opt) -> io::Result<PathBuf> {
             "System’s configuration folder: for its standard location see https://docs.rs/directories/latest/directories/struct.ProjectDirs.html#method.config_dir",
         ))?
         .config_dir()
-        .join("packages");
+        .join("packagers");
 
     Ok(config_folder)
 }