Update readme.md

readme.md

@@ -6,6 +6,11 @@ Embeds dependencies as resources.
 [![NuGet Status](https://img.shields.io/nuget/v/Costura.Fody.svg)](https://www.nuget.org/packages/Costura.Fody/)
 
 
+### This is an add-in for [Fody](https://github.com/Fody/Home/)
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+**It is expected that all developers using Fody either [become a Patron on OpenCollective](https://opencollective.com/fody/), or have a [Tidelift Subscription](https://tidelift.com/subscription/pkg/nuget-fody?utm_source=nuget-fody&utm_medium=referral&utm_campaign=enterprise). [See Licensing/Patron FAQ](https://github.com/Fody/Home/blob/master/pages/licensing-patron-faq.md) for more information.**
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 ### !!! READ THIS !!! Package is in maintenance mode !!! READ THIS !!!
 
 In .NET Core 3 there are two new features: