`jsonToMarkdown` is not following the best practices for `headings`

[abdumanas-plutoflume]

As per the content stack documentation here and the best practices for Markdowns here, headings shouldn't be followed by a # and there should be a space b/w the hash prefix and the headings. But the jsonToMarkdown is not following those best practices.

For example, the following test should pass but it's not:

const input = {
      type: "doc",
      children: [
        {
          type: "h1",
          children: [{ text: "This is a heading" }],
        },
      ],
    };

    const result = jsonToMarkdown(input);
    expect(result.trim()).toBe("# This is a heading"); // Doesn't pass
    expect(result.trim()).not.toBe("#This is a heading#"); // Doesn't pass

[shreya-kamble]

Hi @abdumanas-plutoflume ,
This is indeed an bug , we will try to fix it as soon as possible.