修改cursor项目规则文件mdc默认使用思源markdown编辑器打开
搜索 "workbench.editorAssociations"

"workbench.editorAssociations": { "{git,gitlens}:/**/*.{md}": "default", "*.mdc": "siyuaner.markdownViewer" },
搜索 "workbench.editorAssociations"

"workbench.editorAssociations": { "{git,gitlens}:/**/*.{md}": "default", "*.mdc": "siyuaner.markdownViewer" },