remove extra words

Author: mikehoffms

microsoft-edge/extensions-chromium/developer-guide/sidebar.md

@@ -153,7 +153,7 @@ chrome.tabs.onUpdated.addListener(async (tabId, info, tab) => {
 
 When a user switches to a tab or site for which the sidebar is not enabled, the sidebar is hidden.
 
-Note: Currently, sidebar will not automatically show again when the user switches to a tab where it was previously open.
+The sidebar is not automatically displayed again when the user switches to a tab in which the sidebar was previously open.<!-- todo: if behavior changes, update or remove statement -->
 
 For a complete example, see [Site-specific side panel example](https://github.com/GoogleChrome/chrome-extensions-samples/tree/main/functional-samples/cookbook.sidepanel-site-specific).