Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'

lib/vscode/extensions/git/README.md

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+# Git integration for Visual Studio Code
+
+**Notice:** This extension is bundled with Visual Studio Code. It can be disabled but not uninstalled.
+
+## Features
+
+See [Git support in VS Code](https://code.visualstudio.com/docs/editor/versioncontrol#_git-support) to learn about the features of this extension.
+
+## API
+
+The Git extension exposes an API, reachable by any other extension.
+
+1. Copy `src/api/git.d.ts` to your extension's sources;
+2. Include `git.d.ts` in your extension's compilation.
+3. Get a hold of the API with the following snippet:
+
+	```ts
+	const gitExtension = vscode.extensions.getExtension<GitExtension>('vscode.git').exports;
+	const git = gitExtension.getAPI(1);
+	```