#5071 Update cards docs (#5116)

Add mention that <Card.Text> is a <p> tag and can be used multiple times.
Co-authored-by: Tor Raswill <tor.raswill@dqc.se>

www/src/pages/components/cards.mdx

@@ -54,6 +54,9 @@ Using `<Card.Title>`, `<Card.Subtitle>`, and
 `<Card.Text>` inside the `<Card.Body>` will line them up nicely.
 `<Card.Link>`s are used to line up links next to each other.
 
+`<Card.Text>` outputs `<p>` tags around the content, so you can
+use multiple `<Card.Text>`s to create separate paragraphs.
+
 <ReactPlayground codeText={CardText} />
 
 ### List Groups