switch default client to async (#3)

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "gorse_rs"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 description = "Rust SDK for gorse recommender system"
 readme = "README.md"
@@ -18,3 +18,4 @@ serde_json = "1.0"
 [dev-dependencies]
 chrono = "0.4.23"
 redis = "0.22.1"
+tokio = { version = "1.22.0", features = ["macros"] }

README.md

@@ -9,11 +9,13 @@ Rust SDK for gorse recommender system
 
 ```toml
 [dependencies]
-gorse_rs = "0.4.0"
+gorse_rs = "0.4.1"
 ```
 
 ## Usage
 
+- Use async client:
+
 ```rust
 use gorse_rs::{Feedback, Gorse};
 
@@ -30,3 +32,23 @@ client.insert_feedback(&feedback);
 
 client.get_recommend("100");
 ```
+
+- Use blocking client:
+
+```rust
+use gorse_rs::Feedback;
+use gorse_rs::blocking::Gorse;
+
+let client = Gorse::new("http://127.0.0.1:8087", "api_key");
+
+let feedback = vec![
+    Feedback::new("star", "bob", "vuejs:vue", "2022-02-24"),
+    Feedback::new("star", "bob", "d3:d3", "2022-02-25"),
+    Feedback::new("star", "bob", "dogfalo:materialize", "2022-02-26"),
+    Feedback::new("star", "bob", "mozilla:pdf.js", "2022-02-27"),
+    Feedback::new("star", "bob", "moment:moment", "2022-02-28")
+];
+client.insert_feedback(&feedback).await;
+
+client.get_recommend("100").await;
+```