COnfiguration file editing. Which editor or what is the problem?

Dear folks,

SO many times when I edit the orthanc.json the configuration file the docker wont start.

I can read this line on the log:

2017-06-26 06:29:47 stdout W0626 06:29:47.291241 main.cpp:1300] Orthanc has stopped
2017-06-26 06:29:47 stdout E0626 06:29:47.290684 main.cpp:1267] Uncaught exception, stopping now: [Cannot parse a JSON document] (code 28)
2017-06-26 06:29:47 stdout E0626 06:29:47.290206 OrthancInitialization.cpp:139] The configuration file does not follow the JSON syntax: "/docker/orthanc/orthanc.json"
2017-06-26 06:29:47 stdout W0626 06:29:47.289594 OrthancInitialization.cpp:126] Reading the configuration from: "/docker/orthanc/orthanc.json"

which means:

    "Code": 28,
    "HttpStatus": 400,
    "Name": "BadJson",
"Description": "Cannot parse a JSON document"

This can shown when I add a new dicom node.

How can I add new dicom node?

now thoose lines:

"EDU" : [ "EDUCATION", "", 11112, "StoreScp" ]
"LAPTOP" : [ "LAPTOP", "", 11112, "StoreScp" ]

WHen I add the second line the docker container will stop.
I tried to edit with nano, vi, mc + f4, notepad++ but same results....

Basicly the COnfiguration file is OKAY when I have only 1 dicom node.
When I add a new one (LAPTOP) I can see the error message in the log and wont start..


Confirmed: That coma was the problem. SOrry for this.