Update README.md

Author: vikstrous

README.md

@@ -1,6 +1,6 @@
 # dataloadgen
 
-[godoc](https://pkg.go.dev/github.com/vikstrous/dataloadgen)
+[![Go Reference](https://pkg.go.dev/badge/github.com/vikstrous/dataloadgen.svg)](https://pkg.go.dev/github.com/vikstrous/dataloadgen)
 
 `dataloadgen` is an implementation of a pattern popularized by [Facebook's Dataloader](https://github.com/graphql/dataloader).
 
@@ -78,4 +78,4 @@ BenchmarkDataloadgen/10_concurently-8          17260             65339 ns/op
 BenchmarkDataloadgen/all_in_one_request-8      10000            978196 ns/op          573651 B/op          8 allocs/op
 ```
 
-To run the benchmarks, run `go test -bench=. . -benchmem` from the benchmark directory.
+To run the benchmarks, run `go test -bench=. . -benchmem` from the benchmark directory.