docs: tweaks

Author: mdjastrzebski

website/docs/12.x/docs/migration/v13.mdx

@@ -119,4 +119,4 @@ This change should not break any tests.
 
 ## Full Changelog
 
-https://github.com/callstack/react-native-testing-library/compare/v12.8.1...v13.0.0-beta.0
+https://github.com/callstack/react-native-testing-library/compare/v12.8.1...v13.0.0

website/docs/13.x/docs/migration/v13.mdx

@@ -1,11 +1,5 @@
 # Introduction
 
-:::warning
-
-This guide is for version 13.x of React Native Testing Library which is currently in beta!
-
-:::
-
 ## The problem
 
 You want to write maintainable tests for your React Native components. As a part of this goal, you want your tests to avoid including implementation details of your components and focus on making your tests give you the confidence they are intended. As part of this, you want your tests to be maintainable in the long run so refactors of your components (changes to implementation but not functionality) don't break your tests and slow you and your team down.

website/docs/13.x/docs/start/intro.md

@@ -2,20 +2,14 @@ import { PackageManagerTabs } from 'rspress/theme';
 
 # Quick Start
 
-:::warning
-
-This guide is for version 13.x of React Native Testing Library which is currently in beta!
-
-:::
-
 ## Installation
 
 Open a Terminal in your project's folder and run:
 
 <PackageManagerTabs
   command={{
-    yarn: 'yarn add -D @testing-library/react-native@beta',
-    npm: 'npm install -D @testing-library/react-native@beta',
+    yarn: 'yarn add -D @testing-library/react-native',
+    npm: 'npm install -D @testing-library/react-native',
   }}
 />