docs/comments: fix some typos (#1346)

CHANGELOG.md

@@ -139,7 +139,7 @@
 - Add `Response::bytes_stream()` method to get body as an `impl Stream`.
 - Add `Request::try_clone()` method.
 
-- Change default `Client` API to async. The previous blocking client API is avaialble at `reqwest::blocking`.
+- Change default `Client` API to async. The previous blocking client API is available at `reqwest::blocking`.
 - Change to no longer send a default `User-Agent` header. Add one via `ClientBuilder::user_agent()`.
 - Change to enable system/environment proxy detection by default.
 - Change `default-tls` feature to only include `ClientBuilder` options that both `native-tls` and `rustls` support.
@@ -224,7 +224,7 @@
 
 ### Features
 
-- Add `multipart::Form::percent_encode_noop()` to allow for servers which don't support percent encoding of paramters.
+- Add `multipart::Form::percent_encode_noop()` to allow for servers which don't support percent encoding of parameters.
 - Add `ClientBuilder::http1_title_case_headers()` to force request headers to use Title-Case.
 - Add `ClientBuilder::connect_timeout()` to allow setting only a connect timeout.
 

src/async_impl/multipart.rs

@@ -334,7 +334,7 @@ impl<P: PartProps> FormParts<P> {
                     let header = self.percent_encoding.encode_headers(name, field.metadata());
                     let header_length = header.len();
                     self.computed_headers.push(header);
-                    // The additions mimick the format string out of which the field is constructed
+                    // The additions mimic the format string out of which the field is constructed
                     // in Reader. Not the cleanest solution because if that format string is
                     // ever changed then this formula needs to be changed too which is not an
                     // obvious dependency in the code.

src/cookie.rs

@@ -10,7 +10,7 @@ use bytes::Bytes;
 
 /// Actions for a persistent cookie store providing session support.
 pub trait CookieStore: Send + Sync {
-    /// Store a set of Set-Cookie header values recevied from `url`
+    /// Store a set of Set-Cookie header values received from `url`
     fn set_cookies(&self, cookie_headers: &mut dyn Iterator<Item = &HeaderValue>, url: &url::Url);
     /// Get any Cookie values in the store for `url`
     fn cookies(&self, url: &url::Url) -> Option<HeaderValue>;