fix(client): fix tests on documentation (#1201)

client/src/builder.rs

@@ -69,7 +69,7 @@ impl ClientBuilder {
     /// // trait implement for the logic of middleware. most of the types are boilerplate
     /// // that can be copy/pasted. the real logic goes into `async fn call`
     /// impl<'r, 'c> Service<ServiceRequest<'r, 'c>> for MyMiddleware {
-    ///     type Response = Response<'c>;
+    ///     type Response = Response;
     ///     type Error = Error;
     ///
     ///     async fn call(&self, req: ServiceRequest<'r, 'c>) -> Result<Self::Response, Self::Error> {

client/src/lib.rs

@@ -7,7 +7,10 @@
 //! #[tokio::main]
 //! async fn main() -> Result<(), Error> {
 //!     // build client with tls enabled.
+//!     #[cfg(feature = "rustls")]
 //!     let client = Client::builder().rustls().finish();
+//!     #[cfg(not(feature = "rustls"))]
+//!     let client = Client::builder().finish();
 //!     // send get request to google and wait for response.
 //!     let res = client.get("https://www.google.com/").send().await?;
 //!     // parse streaming response body to bytes.