prepare beta 2 release set (#1975)

src/types/json.rs

@@ -197,7 +197,7 @@ where
 
 /// `Json` extractor configuration.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use actix_web::{error, post, web, App, FromRequest, HttpResponse};
 /// use serde::Deserialize;

src/types/path.rs

@@ -13,7 +13,7 @@ use crate::{dev::Payload, error::PathError, FromRequest, HttpRequest};
 ///
 /// Use [`PathConfig`] to configure extraction process.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use actix_web::{get, web};
 ///

src/types/payload.rs

@@ -23,7 +23,7 @@ use crate::{dev, http::header, web, Error, FromRequest, HttpMessage, HttpRequest
 ///
 /// See [`PayloadConfig`] for important notes when using this advanced extractor.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use std::future::Future;
 /// use futures_util::stream::{Stream, StreamExt};
@@ -81,7 +81,7 @@ impl FromRequest for Payload {
 ///
 /// Use [`PayloadConfig`] to configure extraction process.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use actix_web::{post, web};
 ///
@@ -118,7 +118,7 @@ impl FromRequest for Bytes {
 /// [**PayloadConfig**](PayloadConfig) allows to configure
 /// extraction process.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use actix_web::{post, web, FromRequest};
 ///

src/types/query.rs

@@ -18,7 +18,7 @@ use crate::{dev::Payload, error::QueryPayloadError, Error, FromRequest, HttpRequ
 /// A query string consists of unordered `key=value` pairs, therefore it cannot be decoded into any
 /// type which depends upon data ordering (eg. tuples). Trying to do so will result in a panic.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use actix_web::{get, web};
 /// use serde::Deserialize;
@@ -138,7 +138,7 @@ where
 
 /// Query extractor configuration.
 ///
-/// # Usage
+/// # Examples
 /// ```
 /// use actix_web::{error, get, web, App, FromRequest, HttpResponse};
 /// use serde::Deserialize;