Fix examples name convention for godoc, redux.

Case matters here and in a rather unusual way.

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

Author: warpfork

example_test.go

@@ -10,7 +10,7 @@ import (
 	"github.com/polydawn/refmt/obj/atlas"
 )
 
-func ExampleNewMarshaller_JSON() {
+func ExampleNewMarshaller_json() {
 	var buf bytes.Buffer
 	encoder := refmt.NewMarshaller(json.EncodeOptions{}, &buf)
 	err := encoder.Marshal(map[string]interface{}{
@@ -25,7 +25,7 @@ func ExampleNewMarshaller_JSON() {
 	// <nil>
 }
 
-func ExampleNewMarshallerAtlased_AutogeneratedAtlas() {
+func ExampleNewMarshallerAtlased_autogeneratedAtlas() {
 	type MyType struct {
 		X string
 		Y int
@@ -51,7 +51,7 @@ func ExampleNewMarshallerAtlased_AutogeneratedAtlas() {
 	// <nil>
 }
 
-func ExampleNewMarshallerAtlased_CustomStructMapping() {
+func ExampleNewMarshallerAtlased_customStructMapping() {
 	type MyType struct {
 		X string
 		Y int
@@ -79,7 +79,7 @@ func ExampleNewMarshallerAtlased_CustomStructMapping() {
 	// <nil>
 }
 
-func ExampleNewMarshallerAtlased_TransformFuncs() {
+func ExampleNewMarshallerAtlased_transformFuncs() {
 	type MyType struct {
 		X string
 		Y string