chore: add video-to-audio and custom format conversion feature

Updated the README to include the new feature allowing video files to be converted into custom video or audio formats. This highlights enhanced functionality for handling multimedia files.

README.md

@@ -22,6 +22,7 @@ Moreover, Larupload can calculate the dominant colors of videos and images, as w
 * Upload with 2 different strategies: ORM-based and Standalone
 * Use different drivers
 * Ability to resize/crop photos and videos
+* Ability to convert video files into custom video or audio formats
 * Ability to create multiple sizes of videos and images
 * Ability to create HTTP Live Streaming (HLS) from video sources
 * Ability to hide the real ID of model records by using different ID formats (ULID, UUID and ...)