fix import paths for v2 release

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

config/reader/json/json.go

@@ -5,10 +5,10 @@ import (
 	"time"
 
 	"github.com/imdario/mergo"
-	"github.com/micro/go-micro/config/encoder"
-	"github.com/micro/go-micro/config/encoder/json"
-	"github.com/micro/go-micro/config/reader"
-	"github.com/micro/go-micro/config/source"
+	"github.com/micro/go-micro/v2/config/encoder"
+	"github.com/micro/go-micro/v2/config/encoder/json"
+	"github.com/micro/go-micro/v2/config/reader"
+	"github.com/micro/go-micro/v2/config/source"
 )
 
 type jsonReader struct {

config/reader/json/json_test.go

@@ -3,7 +3,7 @@ package json
 import (
 	"testing"
 
-	"github.com/micro/go-micro/config/source"
+	"github.com/micro/go-micro/v2/config/source"
 )
 
 func TestReader(t *testing.T) {

config/reader/json/values.go

@@ -8,8 +8,8 @@ import (
 	"time"
 
 	simple "github.com/bitly/go-simplejson"
-	"github.com/micro/go-micro/config/reader"
-	"github.com/micro/go-micro/config/source"
+	"github.com/micro/go-micro/v2/config/reader"
+	"github.com/micro/go-micro/v2/config/source"
 )
 
 type jsonValues struct {

config/reader/json/values_test.go

@@ -4,7 +4,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/micro/go-micro/config/source"
+	"github.com/micro/go-micro/v2/config/source"
 )
 
 func TestValues(t *testing.T) {