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Update docs/en/sql-reference/statements/explain.md

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Co-authored-by: olgarev <56617294+olgarev@users.noreply.github.com>
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docs/en/sql-reference/statements/explain.md
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@ -136,9 +136,7 @@ Union
!!! note "Note"
Step and query cost estimation is not supported.
The result JSON is a tree representing query plan. Every query plan node is a dictionary that always has the keys `Node Type` and `Plans`. `Node Type` is a string with a step name. `Plans` is an array with child step descriptions. Other optional keys may be added depending on node type and settings.
The following examples show the output of the query plan steps when `json` = 1 along with other settings.
When `json = 1`, the query plan is represented in JSON format. Every node is a dictionary that always has the keys `Node Type` and `Plans`. `Node Type` is a string with a step name. `Plans` is an array with child step descriptions. Other optional keys may be added depending on node type and settings.
Example: