added examples in readme

README.md

@@ -1,3 +1,43 @@
 # Request
 
 A library for making HTTP requests.
+
+# Examples
+
+A simple GET request:
+```rust
+use request::Request;
+
+// ... start a local server on port 8000 ...
+let request = Request::get("localhost:8000");
+let response = request.send().unwrap();
+assert_eq!(response.status, 200);
+```
+
+Adding headers:
+```rust
+use request::Request;
+
+// ... start a local server on port 8000 ...
+let response = Request::get("localhost:8000")
+    .header("Authorization", "Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==")
+    .send()
+    .unwrap();
+assert_eq!(response.status, 200);
+```
+
+A POST request with serialized JSON data.
+```rust
+use request::Request;
+
+#[derive(miniserde::Serialize)]
+struct Example { code: u32, message: String }
+
+let data = Example { code: 123, message: "hello".to_string() };
+let json = miniserde::json::to_string(&data);
+let request = Request::post("example.org/api", &json);
+assert_eq!(
+    format!("{request}"),
+    "POST /api HTTP/1.1\r\nHost: example.org\r\n\r\n{\"code\":123,\"message\":\"hello\"}"
+);
+```