Blockquotes in HTML

IF -> a block level content is quoted from somewhere else,(be it a paragraph, multiple paragraphs, a list, etc.)
THEN -> the text should wrap it inside a <blockquote> element to signify this, and include a URL pointing to the source of the quote inside a cite attribute.

Example
The following markup is taken from the MDN <blockquote> element page:

<p>The HTML blockquote Element indicates that the enclosed text is an extended quotation.</p>
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To turn this into a block quote, we would just do this below:

<p>Here is a blockquote:</p>
<blockquote cite="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/blockquote">
  <p>The HTML blockquote Element indicates that the enclosed text is an extended quotation.</p>
</blockquote>
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Rendered Result of code above:

Note: Browser styling renders blockquote as indented paragraph by default

1.(https://developer.mozilla.org/en-US/docs/Learn/HTML/Introduction_to_HTML/Advanced_text_formatting#blockquotes "Permalink to Blockquotes")