Add release handling and npm scripts

README.md

@@ -41,6 +41,7 @@ This node module provides [a web service](#web-service), a [command line client]
   - [mapEntity](#mapentity)
   - [mapMapping](#mapmapping)
 - [Contributing](#contributing)
+  - [Publish](#publish)
 - [License](#license)
 
 [mapEntity]: #mapentity
@@ -475,11 +476,19 @@ from a single Wikidata item to a concept in another concept scheme.
 
 ## Contributing
 
-See <https://github.com/gbv/wikidata-jskos>.
+PRs accepted against the `dev` branch.
 
-For debugging set environment variable `DEBUG`, also possible via file `.env`:
+Small note: If editing the README, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
 
-    DEBUG=*
+### Publish
+
+**For maintainers only**
+
+Never work on the main branch directly. Always make changes on `dev` and then run the release script:
+
+```bash
+npm run release:patch # or minor or major
+```
 
 ## License
 

package.json

@@ -15,7 +15,11 @@
     "test-watch": "mocha --watch",
     "lint": "eslint '*.js' '**/*.js'",
     "fix": "eslint --fix '*.js' '**/*.js'",
-    "lint-staged": "lint-staged"
+    "lint-staged": "lint-staged",
+    "release": "[[ \"$(git rev-parse --abbrev-ref HEAD)\" == \"dev\" ]] && git pull && npm test && npm version $SEMVER && git push && git checkout main && git merge dev && git push --follow-tags && git checkout dev",
+    "release:patch": "SEMVER=patch npm run release",
+    "release:minor": "SEMVER=minor npm run release",
+    "release:major": "SEMVER=major npm run release"
   },
   "files": [
     "lib/*",