Remove Numbering for Top-Level Headers When Adding Markdown Section Numbers

[iCasture]

When using Markdown to write documents, the top-level header is typically reserved for the document title and should only appear once in most cases. It should not be numbered when section numbering is added.

For example, given the following document:

# Document Title

## Section One

### Subsection One

### Subsection Two

## Section Two

### Subsection One

## Section Three

After adding section numbers, the result would currently look like this:

# 1. Document Title

## 1.1. Section One

### 1.1.1. Subsection One

### 1.1.2. Subsection Two

## 1.2. Section Two

### 1.2.1. Subsection One

## 1.3. Section Three

When rendered, it appears as:

Could you consider adding an option to skip numbering the top-level header? This way, the numbered output would look like:

# Document Title

## 1. Section One

### 1.1. Subsection One

### 1.2. Subsection Two

## 2. Section Two

### 2.1. Subsection One

## 3. Section Three

Additionally, could you also consider implementing the functionality requested in #1380?

[icytree]

I was also looking for this feature, here's an easy workarround that might quite the job (it really did for me)!

[iCasture]

@icytree

Thank you for providing a solution to resolve this issue. But I still hope the developers can offer an option to ignore it.

Additionally, I found another plugin: Markdown TOC & Chapter Number, which ignores numbering for level 1 headings by default.