sidebar relative path issues #1569

Bug Report

Steps to reproduce

1. set relativePath as true

2. set loadSidebar as SUMMARY.md

3. create path/to/doc1.md and path/to/doc2.md

4. write the link path/to/doc2.md to SUMMARY.md

5. access #/path/to/doc1

What is current behaviour

the sidebar link is #/path/to/path/to/doc2

What is the expected behaviour

the sidebar link should be #/path/to/doc2

The sidebar and article come from different sources, so have different base pathes.

The base path of all sidebar links should be dirname($docsify.loadSidebar), not dirname(location.hash).

Other relevant information

• Your OS:
• Node.js version:
• npm/yarn version:
• Browser version:
• Docsify version: 4.11.6
• Docsify plugins: