append into json

[luisbatalla]

Hi people.

I have this json:

{
	"blocks": [
		{
			"type": "context",
			"elements": [

			]
		}
	]
}

I need to append into tag "Elements" this:

{
  "type": "mrkdwn",
  "text": "My text"
}

The result should be this:

{
	"blocks": [
		{
			"type": "context",
			"elements": [
				{
					"type": "mrkdwn",
					"text": "My text"
				}
			]
		}
	]
}

How I should append into the tag "Element" ?

Thanks