Add publish workflow

Author: laurynas

.github/workflows/publish.yml

@@ -0,0 +1,19 @@
+name: Publish package to npmjs
+on:
+  release:
+    types: [published]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          registry-url: 'https://registry.npmjs.org'
+      - run: yarn install
+      - run: yarn build
+      - run: yarn publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+          DETECTLANGUAGE_API_KEY: ${{ secrets.DETECTLANGUAGE_API_KEY }}