updated readme

README.md

@@ -4,11 +4,15 @@ This is a simple wrapper for [youtube-dl](https://youtube-dl.org/) in rust.
 
 ```rust
 use ytd_rs::{YoutubeDL, ResultType, Arg};
+use std::path::PathBuf;
+use std::error::Error;
+fn main() -> Result<(), Box<dyn Error>> {
     // youtube-dl arguments quietly run process and to format the output
     // one doesn't take any input and is an option, the other takes the desired output format as input
     let args = vec![Arg::new("--quiet"), Arg::new_with_arg("--output", "%(title).90s.%(ext)s")];
     let link = "https://www.youtube.com/watch?v=uTO0KnDsVH0";
-let ytd = YoutubeDL::new("./path/to/download/directory", args, link)?;
+    let path = PathBuf::from("./path/to/download/directory");
+    let ytd = YoutubeDL::new(&path, args, link)?;
 
     // start download
     let download = ytd.download();
@@ -19,8 +23,6 @@ match download.result_type() {
         ResultType::IOERROR | ResultType::FAILURE =>
                 println!("Couldn't start download: {}", download.output()),
     };
+Ok(())
+}
 ```
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