doc: fix missing codeblock directive
@@ -215,7 +215,7 @@ When you see the UEFI shell, input **exit**.
Boot Windows on ACRN With a Default Configuration
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-#. Prepare WaaG launch script
+#. Prepare WaaG launch script::
cp /home/acrn/work/install_win.sh /home/acrn/work/launch_win.sh
