router: parsing: docs: fix 'instead' typo

Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>

proxmox-router/src/stream/parsing.rs

@@ -20,7 +20,7 @@ where
 impl<R: Send + Sync> Records<R> {
     /// Create a *new buffered reader* for to cerate a record stream from an [`AsyncRead`].
     /// Note: If the underlying type already implements [`AsyncBufRead`], use [`Records::from`]
-    /// isntead!
+    /// instead!
     pub fn new<T>(reader: T) -> Records<BufReader<T>>
     where
         T: AsyncRead + Send + Sync + Unpin + 'static,