chore: polish pi-question package manifest and README for packaging/tests

package.json

@@ -1,8 +1,13 @@
 {
   "name": "pi-question",
   "version": "0.1.0",
+  "description": "Pi extension package that provides a multi-question interactive choice flow with a built-in final free-text \"Something else...\" answer.",
   "type": "module",
   "keywords": ["pi-package"],
+  "repository": {
+    "type": "git",
+    "url": "https://gitea.rwiesner.com/pi/pi-question"
+  },
   "scripts": {
     "test": "tsx --test *.test.mjs"
   },