Update package.json

[zeibura]

Minor rewrite of some setting descriptions in package.json

[zeibura]

Also can someone help me understand this
"List of copybook extensions. Empty string specifies no file extension."
Does this mean an empty string means files with no extension will be treated as copybooks?

[zimlu02]

Also can someone help me understand this "List of copybook extensions. Empty string specifies no file extension." Does this mean an empty string means files with no extension will be treated as copybooks?

Yes.