add merchants max5dollars and check-coin

_data/merchants.yml

@@ -231,6 +231,8 @@
       url: https://allforcrypto.com
     - name: Cellphone and laptop repair online store in Sweden
       url: http://www.LagaiPhone.se
+    - name: Check-coin - Online store
+      url: https://check-coin.com/
     - name: CoinBought - Buy anything from Amazon
       url: https://coinbought.com/
     - name: Congrevape - e-cigarette products
@@ -271,6 +273,8 @@
       url: https://www.kidsweet.com/
     - name: Loja do Cabelo - Hair extensions (pt)
       url: https://lojadocabelo.com/
+    - name: Max5dollars - Online shop
+      url: https://www.max5dollars.com/
     - name: MetaDope - Patch & lapel pin manufacturing services
       url: https://metado.pe/
     - name: Mushroom cultures, mushroom growing supplies, seeds