Bump version suffix to 2.0.0-rc

Author: natemcmaster

Directory.Build.props

@@ -20,7 +20,7 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
 
     <VersionPrefix>2.0.0</VersionPrefix>
-    <VersionSuffix>beta</VersionSuffix>
+    <VersionSuffix>rc</VersionSuffix>
     <PackageVersion Condition="'$(APPVEYOR_REPO_TAG)' == 'true'">$(VersionPrefix)-$(VersionSuffix)</PackageVersion>
 
     <BuildNumber Condition=" '$(BuildNumber)' == '' ">$(APPVEYOR_BUILD_NUMBER)</BuildNumber>