feat: added sample for backup teaser video and button settings

lido-landing/teaser-video.md

@@ -0,0 +1,37 @@
+---
+testnet-useIframeVideo: false
+testnet-iframeVideoCode: ""
+testnet-useBackupLink: false
+testnet-backupLink: ""
+production-useIframeVideo: false
+production-iframeVideoCode: ""
+production-useBackupLink: false
+production-backupLink: ""
+---
+
+# Video Settings
+
+This file contains configuration for video iframe settings used in different environments.
+
+## Available Settings
+
+### Testnet Environment Settings
+
+- **testnet-useIframeVideo**: Toggle to enable/disable iframe video in testnet environment
+- **testnet-iframeVideoCode**: HTML iframe code for the video when enabled in testnet. Should contain the complete iframe HTML code from video platforms (YouTube, Google Drive, etc.)
+- **testnet-useBackupLink**: When enabled, clicking the button will open a link in a new tab instead of showing the video
+- **testnet-backupLink**: URL to open in new tab when backup link mode is enabled for testnet
+
+### Production Environment Settings
+
+- **production-useIframeVideo**: Toggle to enable/disable iframe video in production environment
+- **production-iframeVideoCode**: HTML iframe code for the video when enabled in production. Should contain the complete iframe HTML code from video platforms (YouTube, Google Drive, etc.)
+- **production-useBackupLink**: When enabled, clicking the button will open a link in a new tab instead of showing the video
+- **production-backupLink**: URL to open in new tab when backup link mode is enabled for production
+
+## Usage Notes
+
+1. For each environment (testnet and production), you can choose between showing a video or using a backup link
+2. If both video and backup link are enabled for an environment, the backup link takes precedence
+3. Video code should be a complete iframe HTML element with all necessary attributes
+4. Backup links should be complete URLs including the protocol (http:// or https://)