Add Green Web Foundation badge (#1)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

README.adoc

@@ -7,6 +7,7 @@
 :sectnums:
 
 image:https://img.shields.io/badge/OpenSSF-Best_Practices-green?logo=opensourcesecurity[OpenSSF Best Practices,link="https://www.bestpractices.dev/en/projects/new?repo_url=https://github.com/hyperpolymath/typed-wasm"]
+image:https://api.thegreenwebfoundation.org/greencheckimage/jewell.nexus[Green Hosting,link="https://www.thegreenwebfoundation.org/green-web-check/?url=jewell.nexus"]
 
 **TypeLL's 10-level type safety for WebAssembly linear memory.**