[Docs] Fix invalid links (#6217)

* [Docs] Fix invalid links

```sh
# to test run

npx broken-link-checker "https://wix.github.io/react-native-navigation/docs/before-you-start" -ro
```

* Update docs-playground-app.mdx

Co-authored-by: Guy Carmeli <guyca@users.noreply.github.com>

website/api/options-stack.mdx

 
 ### `leftButtons`
 
-An array of buttons to be displayed at the right-side of the TopBar. Button layout is from left to right. See the [Buttons](button-options) section for more details.
+An array of buttons to be displayed at the right-side of the TopBar. Button layout is from left to right. See the [Buttons](options-button) section for more details.
 
-:::info Android support 
+:::info Android support
 Android currently only supports a single left button and does not support custom left Buttons.
 :::
 
 
 ### `rightButtons`
 
-An array of buttons to be displayed at the right side of the TopBar. Button layout is from right to left. See the [Buttons](button-options) section for more details.
+An array of buttons to be displayed at the right side of the TopBar. Button layout is from right to left. See the [Buttons](options-button) section for more details.
 
 | Type                       | Required | Platform |
 | -------------------------- | -------- | -------- |

website/docs/docs-bottomTabs.mdx

 ## Selecting Tabs Programmatically
 Tabs can be selected programmatically by updating the `currentTabIndex` or `currentTabId` options.
 
-We'll use the BottomTabs layout showcased [above](bottomTabs-docs#example) to demonstrate programmatic tab selection.
+We'll use the BottomTabs layout showcased [above](bottomTabs#example) to demonstrate programmatic tab selection.
 
 ### Selecting a tab by index
 The following mergeOptions command will select the second tab. We're passing the id of our BottomTabs layout, but we could also use the id of any of the child components, for example `PROFILE_TAB` or `PROFILE_SCREEN`.

website/docs/docs-playground-app.mdx

     - `npm run start` to get the packager running in the terminal, leave it open
     - **iOS**: open `./playground/ios` in Xcode and run it
     - **Android**: open `./playground/android` in Android Studio and run it
-3. You can run tests if / when you need to (list of scripts [available here](contributing#scripts)). Before you start changing things, make sure everything works.
+3. You can run tests if / when you need to (list of scripts [available here](meta-contributing#scripts)). Before
+you start changing things, make sure everything works.
 	- To easily run all tests in parallel `npm run test-all`

website/docs/style-animations.mdx

 ## Layout animations
 
 ### Stack animations
-When animating screens in and out of a stack, there are three elements you can work with: 
+When animating screens in and out of a stack, there are three elements you can work with:
 
 1. **content** - screen being pushed or popped
 2. **topBar** - stack's TopBar
 
 Let's take a more in-depth look at the following example, which you can find in the playground app:
 
-> [Source screen](https://github.com/wix/react-native-navigation/blob/master/playground/src/screens/sharedElementTransition/CocktailsList.js) and the [Destination screen](https://github.com/wix/react-native-navigation/blob/master/playground/src/screens/sharedElementTransition/CocktailDetailsScreen.js)
+> [Source screen](https://github.com/wix/react-native-navigation/blob/master/playground/src/screens/sharedElementTransition/CocktailsListScreen.js) and the [Destination screen](https://github.com/wix/react-native-navigation/blob/master/playground/src/screens/sharedElementTransition/CocktailDetailsScreen.js)
 
 
 <p align="center">

website/docusaurus.config.js

             },
             {
               label: 'Contributing',
-              to: 'docs/contributing',
+              to: 'docs/meta-contributing',
             }
           ],
         },
           routeBasePath: 'docs',
           path: 'docs',
           editUrl:
-            'https://github.com/wix/react-native-navigation/edit/master/website/docs'
+            'https://github.com/wix/react-native-navigation/edit/master/website'
         },
         theme: {
           customCss: require.resolve('./src/css/custom.css'),
           path: 'api',
           sidebarPath: require.resolve('./sidebarsApi.js'),
           editUrl:
-            'https://github.com/wix/react-native-navigation/edit/master/website/docs'
+            'https://github.com/wix/react-native-navigation/edit/master/website'
         },
         theme: {
           customCss: require.resolve('./src/css/custom.css'),