Per Georgia Tech's accessibility requirements, certain fields likely need additional explanatory text accompanying them:
Video Fields (e.g. YouTube)
Any publicly available video must be captioned for end-users. YouTube's automatic captions are not enough to meet full guidance: any automatic captions must be manually reviewed and corrected.
Please see the Video Captioning and Audio Transcripts page of the Resources for Webmasters website for more information.
Any non-decorative image must have alternative text describing the visual component of the text.
Please see the Ivan Allen College's Web Accessibility Primer for additional information on alternative text for images.