Update WebView2GettingStarted.sln

Fixed project file path

Author: peiche-ms

GettingStartedGuides/Win32_GettingStarted/WebView2GettingStarted.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.28307.539
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "WebView2GettingStarted", "WebView2GettingStarted\WebView2GettingStarted.vcxproj", "{A1238CE8-5AF4-4BBB-9821-E6BBB0D44F75}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "WebView2GettingStarted", "WebView2GettingStarted.vcxproj", "{A1238CE8-5AF4-4BBB-9821-E6BBB0D44F75}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution