Add DeepWebVPN to merchants list

_data/merchants.yml

@@ -219,6 +219,8 @@
       url: https://www.cryptomercado.com/
     - name: Cryptonic Physical Monero & Bitcoin coins
       url: https://cryptonic.net
+    - name: DeepWebVPN
+      url: https://deepwebvpn.net
     - name: Digital gift cards
       url: https://giftoff.com/
     - name: Directvoltage