fix: innerBlocks schema description in block.json (#58649)

* Fix innerBlocks schema description in block.json (#58381)

* docs: Update innerBlocks description in block.json

Co-authored-by: Aki Hamano <54422211+t-hamano@users.noreply.github.com>

* docs: Update innerBlocks description in block.json

---------

Unlinked contributors: shreyash3087, MHRSRoni.

Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: ocean90 <ocean90@git.wordpress.org>

schemas/json/block.json

@@ -745,7 +745,7 @@
 				},
 				"innerBlocks": {
 					"type": "array",
-					"description": "Set the inner blocks that should be used within the block example. The blocks should be defined as a nested array like this: \n\n [ [ 'core/heading', { content: 'This is an Example' }, [] ] ]\n\n Where each block itself is an array that contains the block name, the block attributes, and the blocks inner blocks."
+					"description": "Set the inner blocks that should be used within the block example. The blocks should be defined as a nested array like this:\n\n[ { \"name\": \"core/heading\", \"attributes\": { \"content\": \"This is an Example\" } } ]\n\nWhere each block itself is an object that contains the block name, the block attributes, and the blocks inner blocks."
 				}
 			}
 		},