How to add/publish a web page or part of it to a Rocket Chat channel?

Question

HTML

It is necessary to publish a web page in the Rocket Chat channel, as an example https://yandex.ru/pogoda/moscow and that it would be displayed there in full.
And the second option is the publication of a specific block from the site to the channel in the channel. An example from the main page of Yandex is this block:

How can this be implemented?