docs: mention webinar presets by name

Author: third774

docs/guides/capabilities/webinar/intro-webinar.mdx

@@ -17,7 +17,7 @@ Webinars and group calls serve distinct purposes and have different characterist
 - Webinars are one-to-many events focused on sharing information to a larger audience.
 - They involve presenters and viewers, with the presenter delivering content and viewers actively participating through features like chat and Q&A.
 - In webinars, participants producing media (audio or video) are considered "on stage," while others are "off stage."
-- Dyte provides prebuilt presets for webinar presenters and viewers, offering predefined permissions and UI configurations tailored to their roles
+- Dyte provides prebuilt presets for webinars including the `webinar_presenter` and `webinar_viewer` presets, offering predefined permissions and UI configurations tailored to their roles
 
 ### Group call