update docs

README.md

@@ -3,11 +3,35 @@
 
 [![Build Status](https://dev.azure.com/vscode/VSCE/_apis/build/status/VSCE?branchName=master)](https://dev.azure.com/vscode/VSCE/_build/latest?definitionId=16&branchName=master)
 
-### Requirements
+## Requirements
 
 - [Node.js](https://nodejs.org/en/) at least `8.x.x`
 
-### About
+## Development
+
+First clone this repository, then:
+
+```sh
+yarn
+yarn watch # or `watch-test` to also run tests
+```
+
+Once the watcher is up and running, you can run out of sources with:
+
+```sh
+yarn vsce
+```
+
+### Publish to NPM
+
+Simply push a new tag and the CI will automatically publish to NPM. The usual flow is:
+
+```sh
+npm version [minor|patch]
+git push --follow-tags
+```
+
+## About
 
 This tool assists in packaging and publishing Visual Studio Code extensions.
 

package.json

@@ -28,7 +28,8 @@
     "watch": "concurrently \"tsc --watch\" \"cpx --watch src/vsce out\"",
     "watch-test": "concurrently \"tsc --watch\" \"cpx --watch src/vsce out\" \"mocha --watch\"",
     "test": "mocha",
-    "prepublishOnly": "tsc && cpx src/vsce out && mocha"
+    "prepublishOnly": "tsc && cpx src/vsce out && mocha",
+    "vsce": "out/vsce"
   },
   "engines": {
     "node": ">= 8"