[groovy] add grammar update script

extensions/groovy/package.json

@@ -3,6 +3,9 @@
 	"version": "0.1.0",
 	"publisher": "vscode",
 	"engines": { "vscode": "*" },
+  "scripts": {
+    "update-grammar": "node ../../build/npm/update-grammar.js textmate/groovy.tmbundle Syntaxes/Groovy.tmLanguage ./syntaxes/groovy.tmLanguage.json"
+  },
 	"contributes": {
 		"languages": [{
 			"id": "groovy",
@@ -15,7 +18,7 @@
 		"grammars": [{
 			"language": "groovy",
 			"scopeName": "source.groovy",
-			"path": "./syntaxes/Groovy.tmLanguage"
+			"path": "./syntaxes/groovy.tmLanguage.json"
 		}],
 		"snippets": [{
 			"language": "groovy",