Merge pull request #187 from skolima/target-dotnet461

Target .NETFramework4.6.1 instead of 4.6

Author: martinnormark

PreMailer.Net/PreMailer.Net/PreMailer.Net.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net46</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net461</TargetFrameworks>
     <Version>2.1.1</Version>
     <Authors>Martin H. Normark</Authors>
     <Description>