vscode Grammarly project demo, I config the vscode Grammarly extension. To run the Grammarly extension, firstly add the config for your project; you need to add or change the Grammarly configuration in the .vscode/settings.json file.

// .vscode/settings.json
{
    "grammarly.files.include": ["**/README.md", "**/readme.md","**/CONTRIBUTING.md","chapter/*.md","mytext.txt"]
}

Add those files in grammarly.files.include section that you need to fix spells and grammar with vscode Grammarly extension.

https://medium.com/frontendweb/how-to-use-grammarly-in-vscode-6767c2e06a71