Fix the name, description and status of element.attachShadow subfeature (#11090)
Fix the name, description and status of element.attachShadow subfeature (#11090)

See https://github.com/mdn/browser-compat-data/blob/main/docs/data-guidelines.md#parameters-and-parameter-object-features
chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data