Adding new line/line break while writing swirl lesson "lesson.yaml" with Class "text" in RStudio

Question

I am writing a swirl lesson using swirlify package functions in RStudio.
Below is how lesson.yaml file looks like now

- Class: text
  Output: Welcome to Part 1 Playing with Numbers!!!

Output for which looks like

How to insert a new line or line break after Welcome to Part 1 in lesson.yaml file above, so that it displays the output as below when I run the demo_lesson() command again after saving the lesson.yaml file

| Welcome to Part 1

| Playing with Numbers!!!

Answer 1

Using YAML, you can use any of these equivalent approaches:

• Quoted string with escape

- Class: text
  Output: "Welcome to Part 1\nPlaying with Numbers!!!"

• Literal scalar

- Class: text
  Output: |-
    Welcome to Part 1
    Playing with Numbers!!!

(| starts a literal scalar and - tells YAML to drop the final line break.)

• Multiline scalar

- Class: text
  Output:
    Welcome to Part 1

    Playing with Numbers!!!

(since one line break gets folded into a space, you need two line breaks.)

Since I do not know whether swirlify nicely handles line breaks in the string, I guess you could also do

- Class: text
  Output: Welcome to Part 1
- Class: text
  Output: Playing with Numbers!!!