Update _eth_blocknumber-request.mdx

Author: Danyylka

services/reference/_partials/_eth_blocknumber-request.mdx

@@ -15,7 +15,7 @@ curl https://mainnet.infura.io/v3/<YOUR-API-KEY> \
   <TabItem value="WSS">
 
 ```bash
-wscat -c wss://mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc": "2.0", "method": "eth_blockNumber", "params":[], "id": 1}'
+wscat -c wss://mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc": "2.0", "method": "eth_blockNumber", "params": [], "id": 1}'
 ```
 
   </TabItem>