[json] add tm grammer, not yet enabled

extensions/json/OSSREADME.json

@@ -0,0 +1,22 @@
+// ATTENTION - THIS DIRECTORY CONTAINS THIRD PARTY OPEN SOURCE MATERIALS:
+[{
+	"name": "textmate/json.tmbundle",
+	"version": "0.0.0",
+	"license": "TextMate Bundle License",
+	"repositoryURL": "https://github.com/textmate/json.tmbundle",
+	"licenseDetail": [
+		"Copyright (c) textmate-json.tmbundle project authors",
+		"",
+		"If not otherwise specified (see below), files in this repository fall under the following license:",
+		"",
+		"Permission to copy, use, modify, sell and distribute this",
+		"software is granted. This software is provided \"as is\" without",
+		"express or implied warranty, and with no claim as to its",
+		"suitability for any purpose.",
+		"",
+		"An exception is made for files in readable text which contain their own license information,",
+		"or files where an accompanying file exists (in the same directory) with a \"-license\" suffix added",
+		"to the base-name name of the original file, and an extension of txt, html, or similar. For example",
+		"\"tidy\" is accompanied by \"tidy-license.txt\"."
+	]
+}]