Typo fix in poll.rs
@@ -815,7 +815,7 @@ impl Poll {
/// Deregister an `Evented` handle with the `Poll` instance.
///
/// When an `Evented` handle is deregistered, the `Poll` instance will
- /// no longer monitor it for readiness state changes. Unlike disabiling
+ /// no longer monitor it for readiness state changes. Unlike disabling
/// handles with [`oneshot`], deregistering clears up any internal resources
/// needed to track the handle.
///
