feat: скрипт для поддержки истории изменений

closes #41

README.md

@@ -1,3 +1,6 @@
+[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
+
+
 #The Tale Extended 
 Исходный код для расширения браузерной игры "[Сказка](http://the-tale.org)"
 

package.json

@@ -19,6 +19,10 @@
   ],
   "license": "MIT",
   "scripts": {
+    "release": "standard-version",
+    "release-patch": "npm run release -- --release-as patch",
+    "release-minor": "npm run release -- --release-as minor",
+    "release-major": "npm run release -- --release-as major",
     "lint": "eslint **/*.js --fix",
     "build-chrome": "webpack --config webpack.chrome.config.js",
     "build-userscript": "webpack --config webpack.userscript.config.js",
@@ -45,6 +49,7 @@
     "eslint": "^3.15.0",
     "eslint-config-standard": "^7.1.0",
     "eslint-plugin-promise": "^3.4.1",
-    "eslint-plugin-standard": "^2.0.1"
+    "eslint-plugin-standard": "^2.0.1",
+    "standard-version": "^4.0.0"
   }
 }