update package.json to correctly reflect licence and repo (#17)

Author: Tom Pearson

package.json

@@ -1,13 +1,17 @@
 {
   "name": "@economist/index-core",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "description": "",
   "main": "src/index-core.js",
   "type": "module",
   "homepage": "https://github.com/signal-noise/index-core",
   "engines": {
     "node": ">=14"
   },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/signal-noise/index-core.git"
+  },
   "scripts": {
     "test": "NODE_OPTIONS=--experimental-vm-modules npx jest",
     "lint": "eslint src/*.js",
@@ -16,7 +20,7 @@
     "examples": "sirv"
   },
   "author": "[email protected]",
-  "license": "ISC",
+  "license": "UNLICENSED",
   "devDependencies": {
     "d3": "^7.0.1",
     "eslint": "^7.32.0",