feat: rename to dufs (#59)

close #50

BREAKING CHANGE: rename duf to dufs

src/auth.rs

@@ -11,7 +11,7 @@ use uuid::Uuid;
 use crate::utils::encode_uri;
 use crate::BoxResult;
 
-const REALM: &str = "DUF";
+const REALM: &str = "DUFS";
 
 lazy_static! {
     static ref NONCESTARTHASH: Context = {

src/server.rs

@@ -698,7 +698,7 @@ impl Server {
             "__SLOT__",
             &format!(
                 r#"
-<title>Index of {} - Duf</title>
+<title>Index of {} - Dufs</title>
 <style>{}</style>
 <script>
 const DATA =