chore: remove typos

README.md

@@ -19,7 +19,7 @@ can either choose from:
   - [rustbox](https://github.com/gchp/rustbox)
   - [crossterm](https://github.com/TimonPost/crossterm)
 
-However, some features may only be available in one of the two.
+However, some features may only be available in one of the three.
 
 The library is based on the principle of immediate rendering with intermediate
 buffers. This means that at each new frame you should build all widgets that are

examples/util/event.rs

@@ -11,7 +11,7 @@ pub enum Event<I> {
     Tick,
 }
 
-/// An small event handler that wrap termion input and tick events. Each event
+/// A small event handler that wrap termion input and tick events. Each event
 /// type is handled in its own thread and returned to a common `Receiver`
 pub struct Events {
     rx: mpsc::Receiver<Event<Key>>,