Update branding to rc2

Author: wtgodbe

eng/Versions.props

@@ -9,7 +9,7 @@
     <AspNetCoreMajorVersion>8</AspNetCoreMajorVersion>
     <AspNetCoreMinorVersion>0</AspNetCoreMinorVersion>
     <AspNetCorePatchVersion>0</AspNetCorePatchVersion>
-    <PreReleaseVersionIteration>1</PreReleaseVersionIteration>
+    <PreReleaseVersionIteration>2</PreReleaseVersionIteration>
     <ValidateBaseline>true</ValidateBaseline>
     <IdentityModelVersion>7.0.0-preview</IdentityModelVersion>
     <!--