add guide for myget package source

doc/guide/Quickstart.md

@@ -11,7 +11,13 @@ This guide shows how to create an application that represents `Toast` and `Circl
 
     ![tizen_project_wizard_capture](data/tizen_project_wizard_capture.png)
 
-- Search Tizen.Wearable.CircularUI NuGet package at NuGet package manager. Package source is nuget.org.
+- Add myget(https://tizen.myget.org/F/dotnet/api/v3/index.json) package source at Tools > Options > Nuget Package Manager > Pakage Sources.
+
+    ![nuget_package_source](data/nuget_package_source.png)
+
+- Search Xamarin.Forms NuGet package and install latest version via NuGet package manager. Package source is [Nuget.org](https://api.nuget.org/v3/index.json).
+
+- Search Tizen.Wearable.CircularUI NuGet package and install latest version via NuGet package manager. Package source is [myget](https://tizen.myget.org/F/dotnet/api/v3/index.json).
 
     ![nuget_package_manager_capture](data/nuget_package_manager_capture.png)
 

sample/XUIComponents/UIComponents/UIComponents/UIComponents.csproj

@@ -6,8 +6,8 @@
 
   <!-- Include Nuget Package for Xamarin building -->
   <ItemGroup>
-    <PackageReference Include="Tizen.Wearable.CircularUI" Version="1.0.0-pre1-00021" />
-    <PackageReference Include="Xamarin.Forms" Version="3.0.0.354232-pre3" />
+    <PackageReference Include="Tizen.Wearable.CircularUI" Version="1.0.0-pre2-00012" />
+    <PackageReference Include="Xamarin.Forms" Version="3.1.0.469394-pre1" />
   </ItemGroup>
 
 </Project>