add coverage badge to readme

egor-romanov · soedirgo · commit 197528c05c4a · 2023-01-18T15:23:41.000+08:00
diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 # `supabase-js`
 
+[![Coverage Status](https://coveralls.io/repos/github/supabase/supabase-js/badge.svg?branch=master)](https://coveralls.io/github/supabase/supabase-js?branch=master)
+
 An isomorphic JavaScript client for Supabase.
 
 - **Documentation:** https://supabase.com/docs/reference
