Update version suffix for 2.0.0 RTM release

version.props

@@ -2,6 +2,6 @@
 <Project>
     <PropertyGroup>
         <VersionPrefix>2.0.0</VersionPrefix>
-        <VersionSuffix>preview3</VersionSuffix>
+        <VersionSuffix>rtm</VersionSuffix>
     </PropertyGroup>
 </Project>