Fix examples name convention for godoc.

Signed-off-by: Eric Myhre <hash@exultant.us>

Author: warpfork

example_test.go

@@ -10,7 +10,22 @@ import (
 	"github.com/polydawn/refmt/obj/atlas"
 )
 
-func ExampleJsonEncodeAtlasDefaults() {
+func ExampleNewMarshaller_JSON() {
+	var buf bytes.Buffer
+	encoder := refmt.NewMarshaller(json.EncodeOptions{}, &buf)
+	err := encoder.Marshal(map[string]interface{}{
+		"x": "a",
+		"y": 1,
+	})
+	fmt.Println(buf.String())
+	fmt.Printf("%v\n", err)
+
+	// Output:
+	// {"x":"a","y":1}
+	// <nil>
+}
+
+func ExampleNewMarshallerAtlased_AutogeneratedAtlas() {
 	type MyType struct {
 		X string
 		Y int
@@ -36,7 +51,7 @@ func ExampleJsonEncodeAtlasDefaults() {
 	// <nil>
 }
 
-func ExampleJsonEncodeAtlasCustom() {
+func ExampleNewMarshallerAtlased_CustomStructMapping() {
 	type MyType struct {
 		X string
 		Y int
@@ -64,7 +79,7 @@ func ExampleJsonEncodeAtlasCustom() {
 	// <nil>
 }
 
-func ExampleJsonEncodeAtlas() {
+func ExampleNewMarshallerAtlased_TransformFuncs() {
 	type MyType struct {
 		X string
 		Y string