feat(data/smartphone): add Wikipedia URLs for 3 verified smartphones

Author: Seungpyo1007

data/smartphone/google/2017/pixel-2/google-pixel-2-aitoolbuzz-2724-4gb-64gb-4g-lte.json

@@ -10,7 +10,8 @@
   "os": "Android 8.0, up to Android 11",
   "verified": false,
   "source_urls": [
-    "https://aitoolbuzz.com/mobiles/google-pixel-2"
+    "https://aitoolbuzz.com/mobiles/google-pixel-2",
+    "https://en.wikipedia.org/wiki/Google_Pixel_2"
   ],
   "variant": {
     "region": "global",

data/smartphone/hmd/2025/key/hmd-key-aitoolbuzz-2824-2gb-32gb-4g-lte.json

@@ -10,7 +10,8 @@
   "os": "Android 14",
   "verified": false,
   "source_urls": [
-    "https://aitoolbuzz.com/mobiles/hmd-key"
+    "https://aitoolbuzz.com/mobiles/hmd-key",
+    "https://en.wikipedia.org/wiki/HMD_Key"
   ],
   "variant": {
     "region": "global",

data/smartphone/microsoft/2014/lumia-535/microsoft-lumia-535-aitoolbuzz-5909-1gb.json

@@ -10,7 +10,8 @@
   "os": "Windows Mobile",
   "verified": false,
   "source_urls": [
-    "https://aitoolbuzz.com/mobiles/microsoft-lumia-535"
+    "https://aitoolbuzz.com/mobiles/microsoft-lumia-535",
+    "https://en.wikipedia.org/wiki/Microsoft_Lumia_535"
   ],
   "variant": {
     "region": "global",