mermaid diagram gap

[gzw9162]

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Describe the bug
the vertical gap between two items is too wide in the mermaid diagram , is there any way to shorten the gaps ?

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Sample Markdown File
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Desktop (please complete the following information):

• OS: [e.g. Windows 10 32bit]

Typora Version
e.g: 0.10.11

Additional context
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