adds npm publish action

.github/workflows/build.yml

@@ -3,7 +3,7 @@ name: build-and-test
 on: [push]
 
 jobs:
-  test:
+  build:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:

.github/workflows/publish.yml

@@ -0,0 +1,18 @@
+name: Publish csv2md to npmjs
+on:
+  release:
+    types: [published]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      # Setup .npmrc file to publish to npm
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          registry-url: 'https://registry.npmjs.org'
+      - run: npm run build-and-test
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}