Add maqueen (#2560)

* Extensions: Add DFRobot Maqueen

* fix

docs/extensions.md

@@ -41,7 +41,13 @@ Check out [microbit.org](http://microbit.org/resellers/) for more information on
   "name": "4tronix MiniBit",
   "url":"/pkg/4tronix/MiniBit",
   "cardType": "package"
-}, {
+},
+{
+  "name": "DF Robot Maqueen",
+  "url":"/pkg/DFRobot/pxt-maqueen",
+  "cardType": "package"
+},
+{
   "name": "Sunfounder Sloth",
   "url":"/pkg/sunfounder/pxt-sloth",
   "cardType": "package"

targetconfig.json

@@ -159,7 +159,8 @@
             "EBOTICS/pxt-eboticsMIBO",
             "KitronikLtd/pxt-kitronik-halohd",
             "dugbraden/pxt-climate-action-kit",
-            "alsrobot-microbit-makecode-packages/MiniCruise"
+            "alsrobot-microbit-makecode-packages/MiniCruise",
+            "DFRobot/pxt-maqueen"
         ],
         "preferredRepos": [
             "Microsoft/pxt-neopixel",