Fix WebVTT description indicating that text payload lines need to start with a hyphen

[TimJentzsch]

MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/WebVTT_API

What specific section or headline is this issue about?

https://developer.mozilla.org/en-US/docs/Web/API/WebVTT_API#inner_structure_of_a_webvtt_file

What information was incorrect, unhelpful, or incomplete?

The text indicates that the text payload lines of the cues need to start with a hyphen:

• We can then have one or more lines that start with a hyphen (-), each containing part of the text track to be shown.

The examples at the start of the article also all start with hyphens, further indicating that this would be necessary.

To my understanding of the specification, the text payload can contain any text in the lines, except < and & (they need to be escaped) and empty lines.
The hyphens (-) would simply show up as a hyphen in the subtitle.

What did you expect to see?

Any text indicating that hyphens at the start of the payload lines are necessary should be removed.
The examples should be adapted to show that this is not necessary, e.g. showing some lines that do not have hyphens at the start.
This is already the case for examples later in the article.

Do you have any supporting links, references, or citations?

• Specification: WebVTT caption or subtitle cue text

Do you have anything more you want to share?

No response

MDN metadata

Page report details

• Folder: en-us/web/api/webvtt_api
• MDN URL: https://developer.mozilla.org/en-US/docs/Web/API/WebVTT_API
• GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/api/webvtt_api/index.md
• Last commit: 47a63bf
• Document last modified: 2022-08-25T10:54:57.000Z