Add vscode-markdown command to convert selected text into collapsible section

What is the problem?

Add a new vscode command to convert selected text into a collapsible section.

How can I reproduce it?

Feature doesn’t exists

Is there any error message in the console?

No Error

Feature Request Details

Given a text section, a vscode command can be used to convert a text area to a collapsible area. For e.g.

To convert the following text in markdown syntax

Hidden Block

> echo "hello world!"

to the collapsible section, we need to surround this text with the following tags which enable the above text to be rendered as collapsible section

<details> <summary>Expand</summary> <p>

Hidden Block

> echo "hello world!"

</p> </details>

which is rendered as follows:

Expand

Hidden Block

> echo "hello world!"

A vscode command similar to generate Table of Contents can be useful TOC Command

[yzhang-gh]

This can be easily done by defining a user snippet (with TM_SELECTED_TEXT variable). Also see here.

[tfga]

VSCode doesn’t insert \t in this case: it inserts spaces.
FYI.