Update knowledge/how to use nodejs repl

[jonchurch]

Updates to the knowledge article how to use nodejs repl.

This is the first of several articles I will be editing #1977 (comment). Any feedback is welcome.

And to jumpstart that:
Is it acceptable that I added sectional headers?

I think it helps the reader survey the content quicker, but very few of these knowledge articles use headers at all currently. My inclination is to add them to articles I edit. Please let me know if I shouldn't bother for any reason.

Edit: Also, any guidance on how I should handle linking between these articles? I wanted to link to the next article, "how to create a custom repl" from this one, but wasn't sure the convention. So I linked to the Node API docs instead.

• Updated code blocks to fences, added shell syntax.
• Added headers to sections
• Added "Special Commands" section, from the Node API docs
• Mention the existence of built in REPL module and standalone executable

cc @fhemberger @keywordnew

[ghost]

LGTM, thanks!
waiting others' suggestions :)

[Yash-Handa]

LGTM, 🙌
To link to the article you should use: /en/knowledge/REPL/how-to-create-a-custom-repl/ so that the link https://nodejs.org/en/knowledge/REPL/how-to-create-a-custom-repl/ is opened.

[Yash-Handa]

@Yash-Handa：Helped to fix the link in the dialog, it should be "https://nodejs.org/en/knowledge/REPL/how-to-use-nodejs-repl/", please confirm :)

I think it should be /en/knowledge/REPL/how-to-create-a-custom-repl/ the domain is added automatically (relative to the root path maybe). Refer this comment : )