Rework actix session (#212)

Co-authored-by: Rob Ede <robjtede@icloud.com>
Co-authored-by: Luca P <rust@lpalmieri.com>
Co-authored-by: Sebastian Rollén <38324289+SebRollen@users.noreply.github.com>

actix-redis/README.md

@@ -1,6 +1,6 @@
 # actix-redis
 
-> Redis integration for Actix and session store for Actix Web.
+> Redis integration for Actix.
 
 [![crates.io](https://img.shields.io/crates/v/actix-redis?label=latest)](https://crates.io/crates/actix-redis)
 [![Documentation](https://docs.rs/actix-redis/badge.svg?version=0.10.0)](https://docs.rs/actix-redis/0.10.0)
@@ -12,36 +12,3 @@
 - [API Documentation](https://docs.rs/actix-redis)
 - [Example Project](https://github.com/actix/examples/tree/master/auth/redis-session)
 - Minimum Supported Rust Version (MSRV): 1.54
-
-## Redis Session Backend
-
-Use redis as session storage.
-
-You need to pass an address of the redis server and random value to the
-constructor of `RedisSession`. This is private key for cookie session,
-When this value is changed, all session data is lost.
-
-Note that whatever you write into your session is visible by the user (but not modifiable).
-
-Constructor panics if key length is less than 32 bytes.
-
-```rust
-use actix_web::{App, HttpServer, middleware::Logger};
-use actix_web::web::{resource, get}
-use actix_redis::RedisSession;
-
-#[actix_web::main]
-async fn main() -> std::io::Result<()> {
-    HttpServer::new(move || App::new()
-        // cookie session middleware
-        .wrap(RedisSession::new("127.0.0.1:6379", &[0; 32]))
-        // enable logger
-        .wrap(Logger::default())
-        // register simple route, handle all methods
-        .service(resource("/").route(get().to(index)))
-    )
-    .bind("127.0.0.1:8080")?
-    .run()
-    .await
-}
-```