fix filenames, set up go generate

example/README.md

@@ -17,8 +17,7 @@ csilvers is Craig Silverstein
 
 It's already checked in to github, but to generate `generated.go`:
 ```sh
-rm example/generated.go
-go run ./cmd/genql/main.go example/genql.yaml
+go generate ./...
 ```
 
 ## Generating the schema files

example/caller.go

@@ -60,3 +60,5 @@ func Main() {
 	}
 	fmt.Println(username, "is", *userResp.User.TheirName)
 }
+
+//go:generate go run github.com/Khan/genql genql.yaml