docs: documented video-player url compatibility

Author: velias

docs/guide/data_ui_blocks/dynamic_components.md

@@ -39,6 +39,12 @@ Component identification: [`video-player`](../../spec/component.md#video-player)
 
 Video player is UI block to play a single video from [video URL provided in the input data](../input_data.md#video-url).
 
+Title is also generated, and link pointing to the video cover image for YouTube videos is provided.
+
+!!!warning
+    Ability to play videos from video service url's (YouTube, Vimeo) or support for video file 
+    formats (`avi`, `mpeg`, `mov`, ...) can vary in individual [UI renderers](../renderer/index.md)!
+
 Example rendering by Red Hat Design System for a prompt `Play trailer of Toy Story movie`:
 
 ![Video Player Data UI Block rendering by Red Hat Design System](../../img/data_ui_block_video.jpg "Video Player Data UI Block rendering by Red Hat Design System")

docs/guide/input_data.md

@@ -241,7 +241,12 @@ Field with Image URL is important for [`image`](data_ui_blocks/dynamic_component
 
 ### Video URL
 
-**ToDo** [`video-player`](data_ui_blocks/dynamic_components.md#video-player) component impl
+To interpret data field as an url pointing to the video, it must match any of this:
+
+* data field value must be http/s url containing `.youtube.` or `youtu.be`
+* data field value must be http/s url and data field name must end with [extension defined in `VIDEO_DATA_PATH_SUFFIXES`](https://github.com/RedHat-UX/next-gen-ui-agent/tree/main/libs/next_gen_ui_agent/data_transform/types.py)
+
+Field with Video URL is important for [`video-player`](data_ui_blocks/dynamic_components.md#video-player) component.
 
 ### Other URL
 

libs/next_gen_ui_rhds_renderer/README.md

@@ -14,7 +14,7 @@ Next Gen UI Agent utilises [Stevedore Plugin framework](https://docs.openstack.o
 * [LLM selected and configured dynamic componets](https://redhat-ux.github.io/next-gen-ui-agent/guide/dynamic_components/)
     * Supported: `one-card`, `image`, `video-player`
     * Tech-Preview: `set-of-cards`, `table`
-
+* `video-player` supports only YouTube video url's
 
 ## Installation