Add ZAN RPC service open API link (#1372)

Author: odednaor

components/Starknet/modules/tools/pages/api-services.adoc

@@ -38,7 +38,7 @@ https://docs.data.voyager.online/spec[RPC spec versions]
 |link:https://omniatech.io/[OMNIA]| |
 |link:https://www.quicknode.com/chains/strk[QuickNode]| |https://www.quicknode.com/docs/starknet#supporting-multiple-versions[Supporting Multiple Versions]
 |https://www.reddio.com/node[Reddio] |  | 
-|https://zan.top/home/node-service[Zan] |  | 
+|https://zan.top/home/node-service[Zan] | https://zan.top/service/public-rpc/starknet[https://zan.top/service/public-rpc/starknet] | Use the `/rpc/vX_Y` suffix, as explained in https://github.com/eqlabs/pathfinder?tab=readme-ov-file#json-rpc-api[JSON-RPC API] in Pathfinder’s README.
 |===