fixes links: assume that Infura --> MM docs does not map exactly (#1488)

Author: m4sterbunny

services/reference/zksync/json-rpc-methods/subscription-methods/index.md

@@ -4,7 +4,7 @@ title: "Subscription methods"
 
 # Subscription methods
 
-Subscription methods are available for [WebSocket](../../../../learn/websockets.md) connections only, and allow you to wait for events instead of polling for them. For example, dapps can subscribe to logs and receive notifications when a specific event occurs.
+Subscription methods are available for [WebSocket](../../../../concepts/websockets.md) connections only, and allow you to wait for events instead of polling for them. For example, dapps can subscribe to logs and receive notifications when a specific event occurs.
 
 The following subscription methods are available:
 

services/tutorials/ethereum/send-a-transaction/use-web3.js.md

@@ -11,7 +11,7 @@ In this tutorial, you'll send a regular transaction of 0.001 ETH from one accoun
 
 ## Prerequisites
 
-- A [Web3 project](../../../api/getting-started.md) on Infura
+- A [Web3 project](../../../get-started/infura.md) on Infura
 - [Node.js installed](https://nodejs.org/en/download/)
 - An Ethereum account