docs: update getting started (#873)

* fix: updated command to init new project per warning

* fix(docs): updated quickstart to match process

Author: swalker326

website/src/4.x/docs/getting-started.mdx

@@ -35,7 +35,7 @@ To create a new React Native project with Re.Pack or adapt an existing one:
 <Steps>
   ### [Optional] Initialize a new project using React Native Community CLI 
   ```bash 
-  npx react-native@latest init AwesomeProject --skip-install 
+  npx @react-native-community/cli init AwesomeProject --skip-install
   ``` 
   ### Go to your React Native project root directory
    ```bash 

website/src/5.x/docs/getting-started/quick-start.mdx

@@ -35,7 +35,7 @@ To create a new React Native project with Re.Pack or adapt an existing one:
 <Steps>
   ### [Optional] Initialize a new project using React Native Community CLI 
   ```bash 
-  npx react-native@latest init AwesomeProject --skip-install 
+  npx @react-native-community/cli init AwesomeProject --skip-install
   ``` 
   ### Go to your React Native project root directory
    ```bash