Update gts-headers-in-wis2.rst

docs/source/user/gts-headers-in-wis2.rst

@@ -14,46 +14,44 @@ To enable the WIS2 to GTS Gateway to correctly identify the data to be republish
 
 .. code-block:: json
 
-  "properties": {
-    "gts": {
-      "ttaaii": "FTAE31",
-      "cccc": "VTBB"
-    }
-  }
+   "properties": {
+     "gts": {
+       "ttaaii": "FTAE31",
+       "cccc": "VTBB"
+     }
+   }
 
-The wis2box can add these to your WIS2 Notifications automatically, provided you specify the additional file `gts_headers_mappings.json` that contains the required information to map the GTS headers to the incoming filenames.
+wis2box can add these to WIS2 Notifications automatically, provided you specify the additional file `gts_headers_mappings.json` that contains the required information to map the GTS headers to the incoming filenames.
 
-Note that this is optional and only required if you want to turn off the system responsible for sending data to the GTS during the transition period.
+Note that this is optional and only required if you want to turn off the existing system responsible for sending data to the GTS during the transition period.
 
 gts_headers_mapping.csv
 -----------------------
 
-If you want to add GTS headers to your WIS2 notifications, you need to create a CSV file that maps the GTS headers to the incoming filenames. 
+If you want to add GTS headers to your WIS2 notifications, a CSV file is required that maps GTS headers to incoming filenames. 
 
-The CSV file should be named `gts_headers_mapping.csv` and should be placed in the directory you defined using the `WIS2BOX_HOST_DATADIR` environment variable.
+The CSV file should be named (exactly) `gts_headers_mapping.csv` and should be placed in the directory defined using the `WIS2BOX_HOST_DATADIR` environment variable.
 
-The CSV should contain three columns: `string_in_filepath`, `TTAAii`, and `CCCC`.
+The CSV should contain the following columns: `string_in_filepath`, `TTAAii`, and `CCCC`.
 
 Example content for `gts_headers_mapping.csv`:
 
-.. code-block:: console
+.. code-block:: csv
 
-  string_in_filepath,TTAAii,CCCC
-  ISMD01LIIB,ISMD01,LIBB
-  ISMD02LIIB,ISMD02,LIBB
+   string_in_filepath,TTAAii,CCCC
+   ISMD01LIIB,ISMD01,LIBB
+   ISMD02LIIB,ISMD02,LIBB
 
-In this example, whenever `ISMD01LIIB` or `ISMD02LIIB` is contained in the file-path of the incoming file,
-the corresponding GTS-headers will be added to the WIS2 Notification Message as a dictionary in the `properties` field:
+In this example, whenever `ISMD01LIIB` or `ISMD02LIIB` is contained in the filepath of the incoming file,
+the corresponding GTS headers will be added to the WIS2 Notification Message as a dictionary in the `properties` field:
 
 .. code-block:: json
 
-  "properties": {
-    "gts": {
-      "ttaaii": "ISMD01",
-      "cccc": "LIBB"
-    }
-  }
-
-If the `gts_headers_mapping.csv` file is not present in the directory you defined using the `WIS2BOX_HOST_DATADIR` environment variable, the wis2box will not add any GTS headers to the WIS2 Notification Message.
-
+   "properties": {
+     "gts": {
+       "ttaaii": "ISMD01",
+       "cccc": "LIBB"
+     }
+   }
 
+If the `gts_headers_mapping.csv` file is not present in the directory you defined using the `WIS2BOX_HOST_DATADIR` environment variable, wis2box will not add any GTS headers to the WIS2 Notification Message.