docs: Fix typos

CHANGELOG.md

@@ -19,7 +19,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 - Fix https link to pexpect docs
 - Many clippy fixes
-- Remove unnecesary closures
+- Remove unnecessary closures
 - Fix EOF detection on nightly
 - Fix examples
 

_typos.toml

@@ -0,0 +1,2 @@
+[default.extend-identifiers]
+SendContolError = "SendContolError"  # breaking change to fix

src/process.rs

@@ -218,7 +218,7 @@ impl PtyProcess {
                 Some(status) if status != wait::WaitStatus::StillAlive => return Ok(status),
                 Some(_) | None => thread::sleep(time::Duration::from_millis(100)),
             }
-            // kill -9 if timout is reached
+            // kill -9 if timeout is reached
             if let Some(timeout) = self.kill_timeout {
                 if start.elapsed() > timeout {
                     signal::kill(self.child_pid, signal::Signal::SIGKILL).map_err(Error::from)?;