Update 'lottery_SC_guide.md'

lottery_SC_guide.md

@@ -20,10 +20,9 @@ dero-wallet-cli-linux-amd64 --wallet-file testnet2.wallet --testnet --rpc-server
 ./explorer-linux-amd64  --rpc-server-address 127.0.0.1:30306 --http-address=0.0.0.0:8080
 ```
 
-**Dero Online Testnet Explorer**
-```
-http://pool.dero.io:8080
-```
+**Dero Online Testnet Explorer**  
+[http://pool.dero.io:8080](http://)
+
 
 **Installing Smart Contract.**  
  [Download lottery.bas](https://git.dero.io/DeroProject/derosuite_stargate/src/master/cmd/dvm/lottery.bas)