README: add light commercial support offer

README.md

@@ -172,3 +172,10 @@ If you require more platforms to be supported, [get in touch with us](https://nu
 
 - [Flokli](https://flokli.de/)
 - [Ninjatrappeur](https://alternativebit.fr/)
+
+## Commercial support
+
+Looking for help or customization?
+
+Get in touch with Numtide to get a quote. We make it easy for companies to
+work with Open Source projects: <https://numtide.com/contact>