Update the playground‘s wording

[pacdiv]

Do you want to request a feature or report a bug?
Feature.

What is the current behavior?
The Playground's full sentence is quite long to read and the ending question is useless. Besides, it does not help to understand the table result shown right below this sentence.
Let‘s write
a [global or not] regex
verifying that the text
[type your text here]
does
[contain|start with|end with…]
[and so on…]
?

What is the expected behavior?
Since we show a table result of the String.match call results, we should try to simplify the sentence to the following pattern. Starting with a how would indicate that the user would discover how the match happens. Here‘s the new pattern:
How the string
[type your text here]
matches a [global or not] regex
[containing|starting with|ending with…]
[and so on…]
?