README: Add Go Report Card badge (#891)

kyleconroy · web-flow · commit 8e6f1ce0b477 · 2021-02-07T21:18:50.000-08:00
diff --git a/README.md b/README.md
@@ -1,6 +1,7 @@
 # sqlc: A SQL Compiler
 
 ![go](https://github.com/kyleconroy/sqlc/workflows/go/badge.svg)
+[![Go Report Card](https://goreportcard.com/badge/github.com/kyleconroy/sqlc)](https://goreportcard.com/report/github.com/kyleconroy/sqlc)
 
 sqlc generates **type-safe code** from SQL. Here's how it works:
 
