fix typos in zh.json

locales/zh.json

@@ -1,11 +1,11 @@
 {
     "Source x Target Mapper": "Source x Target Mapper",
-    "select an source image": "选择一个源图像",
+    "select a source image": "选择一个源图像",
     "Preview": "预览",
-    "select an target image or video": "选择一个目标图像或视频",
+    "select a target image or video": "选择一个目标图像或视频",
     "save image output file": "保存图像输出文件",
     "save video output file": "保存视频输出文件",
-    "select an target image": "选择一个目标图像",
+    "select a target image": "选择一个目标图像",
     "source": "源",
     "Select a target": "选择一个目标",
     "Select a face": "选择一张脸",
@@ -36,7 +36,7 @@
     "Select source image": "请选取源图像",
     "Select target image": "请选取目标图像",
     "Please provide mapping!": "请提供映射",
-    "Atleast 1 source with target is required!": "至少需要一个来源图像与目标图像相关！",
+    "At least 1 source with target is required!": "至少需要一个来源图像与目标图像相关！",
     "At least 1 source with target is required!": "至少需要一个来源图像与目标图像相关！",
     "Face could not be detected in last upload!": "最近上传的图像中没有检测到人脸!",
     "Select Camera:": "选择摄像头",