TreeView: Add note on truncation (#889)

* Add note on truncation

* Update content/components/tree-view.mdx

Co-authored-by: Patrick H. Lauke <[email protected]>

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Co-authored-by: Patrick H. Lauke <[email protected]>

Author: TylerJDev

content/components/tree-view.mdx

@@ -43,7 +43,7 @@ Node labels should be a succinct title for whatever entity the node represents.
 
 By default, labels are truncated to a single line. However, node labels may be wrapped to multiple lines in cases where the entire label must always be visible.
 
-When a node's text is truncated, it should still be accessible to users via a browser-native tooltip.
+When a node's text is truncated, it should still be accessible to users in some fashion. Truncation is only accessibly acceptable if there is some way for users - including those navigating with a keyboard - to see the non-truncated text.
 
 <Box display="flex" flexDirection={['column', 'column', 'column', 'column', 'row']} sx={{gap: 3}}>
   <Box as="figure" role="presentation" m={0}>