Missing vditor/src/ts/i18n/index?

[xpengineer]

This is the best one. Can we have "outline" button available on the toolbar instead of hiding in "More" like https://marketplace.visualstudio.com/items?itemName=cweijan.vscode-office?

I tried to change it myself, but I got a build error:
[info] $ yarn build
$ yarn esbuild ./src/main.ts --bundle --minify --sourcemap --outfile=../media/dist/main.js
$ D:\rr\gg\vscode-markdown-editor\media-src\node_modules.bin\esbuild ./src/main.ts --bundle --minify --sourcemap --outfile=../media/dist/main.js

src/fix-table-ir.ts:6:21: error: Could not resolve "vditor/src/ts/i18n/index" (mark it as external to exclude it from the bundle)
6 │ import { i18n } from 'vditor/src/ts/i18n/index'

Could you include "how to build" in your Readme? Thanks a lot