Block supports: splitting: add docs

WordPress · Jul 1, 2024 · a2e465c · a2e465c
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commit a2e465c
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diff --git a/docs/reference-guides/block-api/block-supports.md b/docs/reference-guides/block-api/block-supports.md
@@ -1110,3 +1110,11 @@ attributes: {
     }
 }
 ```
+
+## splitting
+
+When set to `true`, `Enter` will split the block into two blocks. Note that this
+is only meant for simple text blocks such as paragraphs and headings with a
+single `RichText` field. RichText in the `edit` function _must_ have an
+`identifier` prop that matches the attribute key of the text, so that it updates
+the selection correctly and we know where to split.