add abaco hosting to merchants

_data/merchants.yml

@@ -124,6 +124,8 @@
   merchants:
     - name: 99Stack Hosting
       url: https://www.99stack.com
+    - name: Abaco Hosting
+      url: https://abacohosting.com/
     - name: AirVPN
       url: https://airvpn.org/
     - name: algoStrategic - Internet Marketing and Web Development