Fixed xml docs output directory

Author: HeyJoel

src/Cofoundry.Plugins.ErrorLogging.Admin/Cofoundry.Plugins.ErrorLogging.Admin.csproj

@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
-    <DocumentationFile>bin\Release\netstandard1.6\Cofoundry.Plugins.ErrorLogging.Admin.xml</DocumentationFile>
+    <DocumentationFile>bin\Release\netstandard2.0\Cofoundry.Plugins.ErrorLogging.Admin.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;1591</NoWarn>
   </PropertyGroup>