docs(tracing): Add docs for Previous and Next trace (#13406)

* docs(tracing): Add docs for Previous and Next trace

* add additional sentence

* Update docs/concepts/key-terms/tracing/trace-view.mdx

Co-authored-by: Alex Krawiec <[email protected]>

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Co-authored-by: Alex Krawiec <[email protected]>

Author: s1gr1d

docs/concepts/key-terms/tracing/img/trace-view-links.png

@@ -48,6 +48,15 @@ By default, the waterfall view shows a list of transactions. If you need more gr
 </div>
 
 <br />
+
+### Previous and Next Traces
+
+As users interact with an application, they generate multiple traces. For example, when a user loads a page in their browser and then navigates to another page, this creates two separate traces: one for the initial pageload and another for the subsequent navigation. By default, Sentry will link the traces together.
+
+If linked traces are available, you will see "Previous" or "Next" buttons below the waterfall view. These buttons allow you to navigate between traces that occurred before or after the current one.
+
+![Previous and next trace links](./img/trace-view-links.png)
+
 ### Helpful Tips
 
 Because debugging often involves multiple people or teams, we've made it easy to draw attention to specific areas of the trace and share a link that shows what you've highlighted with your colleagues. To do this, click on the row you'd like to draw attention to and share the resulting URL. Your colleague will see exactly what you want them to.