Documentation for code import does not describe the syntax completely #581
Description
Bug report
The docs for code imports (https://vuepress.vuejs.org/guide/markdown.html#import-code-snippets) show this syntax: <<< @/test/markdown/fragments/snippet.js{2}. While most of it makes sense, the {2} at the end is not documented. Does it mean "from line 2 and onward" or does it mean something else?
Version
Current live docs.
Steps to reproduce
Doc issue.
What is expected?
An explanation about the {...} portion.
What is actually happening?
It is not explained.
Other relevant information
n/a