Added note on IIIF conventional time values 📝

Author: triplingual

recipe/0560-resources-on-a-timeline/index.md

@@ -17,7 +17,7 @@ You have a set of images you would like to present sequentially in time, in the
 
 This recipe is very similar to [Composition from Multiple Images][0036], which describes using multiple IIIF resources on a single Canvas. The substantial difference between that recipe and this one is the incorporation of [the `duration` property](https://iiif.io/api/presentation/3.0/#duration) and [`behavior` values](https://iiif.io/api/presentation/3.0/#behavior) for instructing viewers on Canvas sequencing.
 
-If a Canvas has a `duration` property, viewers have to process it, and can be helpful by providing an interactive means of displaying that Canvas for the value of the `duration`. To give a viewer instructions on showing a resource during all or part of that duration, the Canvas can use a media fragment on its `target` value, in the form `#t=`. This parameter's value can be a range, a starting time (to indicate the resource should display until the end of the `duration`), or an ending time (to indicate the resource should display from the beginning of the `duration`). For details on these formats, see the [W3C Media Fragments section on Temporal Dimension](https://www.w3.org/TR/media-frags/#naming-time). Fragment values can be individually or in the aggregate greater than the `duration` value. See [Rendering Multiple Media Types on a Time-Based Canvas][0489] for a brief explanation of the `timeMode` property and for more on the "t" parameter on a `target`.
+If a Canvas has a `duration` property, viewers have to process it, and can be helpful by providing an interactive means of displaying that Canvas for the value of the `duration`. To give a viewer instructions on showing a resource during all or part of that duration, the Canvas can use a media fragment on its `target` value, in the form `#t=`. For details on formats and semantics of this media fragment, see the [W3C Media Fragments section on Temporal Dimension](https://www.w3.org/TR/media-frags/#naming-time). Fragment values can be individually or in the aggregate greater than the `duration` value. See [Rendering Multiple Media Types on a Time-Based Canvas][0489] for a brief explanation of the `timeMode` property and for more on the "t" parameter on a `target`.
 
 Nothing in the Presentation API 3.0 says anything explicitly about a viewer initiating play upon loading a Canvas with a `duration` property, even with a`start` value. In addition, for browser-based viewers, people may configure their browsers to disable autoplay. Consequently, manifest creators should not assume a resource with `duration` will begin without interaction.