add legend

resource/locales/en-US/translation.json

@@ -742,6 +742,7 @@
     "growi_settings": {
       "overwrite_documents": "Imported documents will overwrite existing documents",
       "zip_file": "Zip File",
+      "uploaded_data": "Uploaded Data",
       "extracted_file": "Extracted File",
       "collection": "Collection",
       "upload": "Upload"

resource/locales/ja/translation.json

@@ -725,6 +725,7 @@
     "growi_settings": {
       "overwrite_documents": "インポートされたドキュメントは既存のドキュメントを上書きします",
       "zip_file": "Zip ファイル",
+      "uploaded_data": "アップロードされたデータ",
       "extracted_file": "展開されたファイル",
       "collection": "コレクション",
       "upload": "アップロード"

src/client/js/components/Admin/Import/GrowiZipImportSection.jsx

@@ -42,10 +42,13 @@ class GrowiZipImportSection extends React.Component {
           onUpload={this.handleUpload}
         />
         {this.state.fileName && (
+        <Fragment>
+          <div className="h4">{t('importer_management.growi_settings.uploaded_data')}</div>
           <GrowiZipImportForm
             fileName={this.state.fileName}
             fileStats={this.state.fileStats}
           />
+        </Fragment>
         )}
       </Fragment>
     );