fix template gitignore is not uploaded to npm

Author: tylim88

package-lock.json

@@ -1,7 +1,7 @@
 {
 	"name": "ts-hajime",
 	"description": "Delightfully bootstraps TypeScript npm libraries.",
-	"version": "0.0.19",
+	"version": "0.0.21",
 	"scripts": {
 		"reset": "rm -rf node_modules && npm i",
 		"prepublishOnly": "npm run build",
@@ -16,7 +16,8 @@
 	},
 	"files": [
 		"./bin",
-		"./template"
+		"./template",
+		"./template/.gitignore"
 	],
 	"lint-staged": {
 		"*": "npm run lint"