Add EULA and OSS badges to package readme

Author: kzu

src/DependencyInjection/readme.md

@@ -1,5 +1,9 @@
-Automatic compile-time service registrations for Microsoft.Extensions.DependencyInjection with no run-time dependencies, 
+[![EULA](https://img.shields.io/badge/EULA-OSMF-blue?labelColor=black&color=C9FF30)](osmfeula.txt)
+[![OSS](https://img.shields.io/github/license/devlooped/oss.svg?color=blue)](license.txt) 
+
+Automatic compile-time service registrations for Microsoft.Extensions.DependencyInjection with no run-time dependencies, 
 from conventions or attributes.
+
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 <!-- include ../../readme.md#content -->
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