tsconfig + schema + exclude description

[DeanB2015]

The description in the "exclude" object appears to be inaccurate.
Schema location: http://json.schemastore.org/tsconfig

Problem: Exclude Description
Currently reads: "If no 'files' property is present in a tsconfig.json, but an 'exclude' property is present, the compiler will exclude the files and folders specified in the 'exclude' property.",

Solution: Update wording
The "files" property cannot be used in conjunction with the "exclude" property. If both are specified then the "files" property takes precedence.
Taken from the tsconfig wiki: https://github.com/Microsoft/TypeScript/wiki/tsconfig.json

[mhegazy]

A PR to http://json.schemastore.org/tsconfig would be appreciated.