docs: update installation

Author: tannerlinsley

docs/src/pages/installation.md

@@ -10,9 +10,9 @@ You can install React Query with [NPM](https://npmjs.com),
 ### NPM
 
 ```bash
-$ npm i react-query@beta
+$ npm i react-query
 # or
-$ yarn add react-query@beta
+$ yarn add react-query
 ```
 
 React Query is compatible with React v16.8+ and works with ReactDOM and React Native.