add congrevape to merchants list

_data/merchants.yml

@@ -197,6 +197,8 @@
       url: https://allforcrypto.com
     - name: Cellphone and laptop repair online store in Sweden
       url: http://www.LagaiPhone.se
+    - name: Congrevape - e-cigarette products
+      url: https://Congrevape.com/shop
     - name: Crypto Armory - ammunition for cryptocurrency at a competitive rate
       url: https://www.crypto-armory.com
     - name: CryptoMercado - coffee and snacks