chore: add releasing script

.release-it.json

@@ -0,0 +1,8 @@
+{
+  "plugins": {
+    "@release-it/conventional-changelog": {
+      "preset": "angular",
+      "infile": "CHANGELOG.md"
+    }
+  }
+}

package.json

@@ -22,6 +22,7 @@
   "scripts": {
     "build": "rollup -c && sh .fixTypes.sh",
     "prepack": "yarn run build",
+    "release": "release-it",
     "test:unit": "mocha",
     "test:types": "dtslint types",
     "test": "yarn run test:unit && yarn run test:types"
@@ -30,6 +31,9 @@
     "type": "git",
     "url": "git+https://github.com/manuelmhtr/countries-and-timezones.git"
   },
+  "publishConfig": {
+    "registry": "https://registry.npmjs.org"
+  },
   "engines": {
     "node": ">=8.x",
     "npm": ">=5.x"
@@ -56,6 +60,7 @@
     "@babel/core": "^7.13.16",
     "@babel/preset-env": "^7.13.15",
     "@babel/register": "^7.15.3",
+    "@release-it/conventional-changelog": "^8.0.2",
     "@rollup/plugin-babel": "^5.3.0",
     "@rollup/plugin-commonjs": "^18.0.0",
     "@rollup/plugin-json": "^4.1.0",
@@ -66,6 +71,7 @@
     "eslint-plugin-import": "^2.24.0",
     "mocha": "^8.3.2",
     "proxyquire": "^2.1.3",
+    "release-it": "^17.6.0",
     "rollup": "^2.45.2",
     "rollup-plugin-dts": "^3.0.2",
     "rollup-plugin-terser": "^7.0.2",