Merge branch 'docs/mass_mfg_update' into 'master'

Fix a typo according to DOC-158

See merge request espressif/esp-idf!8704

tools/mass_mfg/docs/README.rst

@@ -196,7 +196,7 @@ Running the utility
 
 You can run the utility to generate factory images for each device using the command below. A sample CSV file is provided with the utility::
 
-    python mfg_gen.py generate samples/sample_config.csmples/sample_values_singlepage_blob.csv Sample 0x3000
+    python mfg_gen.py generate samples/sample_config.csv samples/sample_values_singlepage_blob.csv Sample 0x3000
 
 The master value CSV file should have the path in the ``file`` type relative to the directory from which you are running the utility.
 

tools/mass_mfg/docs/README_CN.rst

@@ -200,7 +200,7 @@ CSV 配置文件示例如下::
 
 请运行以下命令为每个设备生成工厂映像，量产程序同时提供了一个 CSV 示例文件::
 
-    python mfg_gen.py generate samples/sample_config.csmples/sample_values_singlepage_blob.csv Sample 0x3000
+    python mfg_gen.py generate samples/sample_config.csv samples/sample_values_singlepage_blob.csv Sample 0x3000
 
 主 CSV 文件应在 ``file`` 类型下设置一个相对路径，指向运行该程序的当前目录。