update README

README.md

@@ -18,15 +18,15 @@ Full documentation is available on the [Req Official Website](https://req.cool/)
 
 ## <a name="Features">Features</a>
 
-* Simple and Powerful: Providing rich client-level and request-level settings, all of which are intuitive and chainable methods, and the request-level setting takes precedence if both are set.
-* Easy Debugging: Powerful and convenient debug utilities, including debug logs, performance traces, and even dump the complete request and response content (see [Debugging](https://req.cool/docs/tutorial/debugging/)).
-* Easy API Testing: API testing can be done with minimal code, no need to explicitly create any Requests and Clients, or even to handle errors (See [Quick HTTP Test](https://req.cool/docs/tutorial/quick-test/))
-* Smart by Default: Detect and decode to utf-8 automatically if possible to avoid garbled characters (See [Auto Decode](https://req.cool/docs/tutorial/auto-decode/)), marshal request body and unmarshal response body automatically according to the Content-Type.
-* Works fine with HTTP2: Support both with HTTP/2 and HTTP/1.1, and HTTP/2 is preferred by default if server support, you can also force the protocol if you want (See [Force HTTP version](https://req.cool/docs/tutorial/force-http-version/)).
-* Support Retry: Support automatic request retry and is fully customizable (See [Retry](https://req.cool/docs/tutorial/retry/)).
-* Easy Download and Upload: You can download and upload files with simple request settings, and even set a callback to show real-time progress (See [Download](https://req.cool/docs/tutorial/download/) and [Upload](https://req.cool/docs/tutorial/upload/)).
-* Exportable: `Transport` is exportable, which support dump requests, it's easy to integrate with existing http.Client, so you can debug APIs with minimal code change.
-* Extensible: Support Middleware for Request and Response (See [Request and Response Middleware](https://req.cool/docs/tutorial/middleware/)).
+* **Simple and Powerful**: Providing rich client-level and request-level settings, all of which are intuitive and chainable methods, and the request-level setting takes precedence if both are set.
+* **Easy Debugging**: Powerful and convenient debug utilities, including debug logs, performance traces, and even dump the complete request and response content (see [Debugging](https://req.cool/docs/tutorial/debugging/)).
+* **Easy API Testing**: API testing can be done with minimal code, no need to explicitly create any Requests and Clients, or even to handle errors (See [Quick HTTP Test](https://req.cool/docs/tutorial/quick-test/))
+* **Smart by Default**: Detect and decode to utf-8 automatically if possible to avoid garbled characters (See [Auto Decode](https://req.cool/docs/tutorial/auto-decode/)), marshal request body and unmarshal response body automatically according to the Content-Type.
+* **Works fine with HTTP2**: Support both with HTTP/2 and HTTP/1.1, and HTTP/2 is preferred by default if server support, you can also force the protocol if you want (See [Force HTTP version](https://req.cool/docs/tutorial/force-http-version/)).
+* **Support Retry**: Support automatic request retry and is fully customizable (See [Retry](https://req.cool/docs/tutorial/retry/)).
+* **Easy Download and Upload**: You can download and upload files with simple request settings, and even set a callback to show real-time progress (See [Download](https://req.cool/docs/tutorial/download/) and [Upload](https://req.cool/docs/tutorial/upload/)).
+* **Exportable**: `Transport` is exportable, which support dump requests, it's easy to integrate with existing http.Client, so you can debug APIs with minimal code change.
+* **Extensible**: Support Middleware for Request and Response (See [Request and Response Middleware](https://req.cool/docs/tutorial/middleware/)).
 
 ## <a name="Get-Started">Get Started</a>