[docs] Discussion on the output of "Step 6: Issue Tokens" is not clear

File: [docs/02_getting-started/03_smart-contract-development/02_deploy-issue-and-transfer-tokens.md](https://github.com/EOSIO/welcome/blob/develop/docs/02_getting-started/03_smart-contract-development/02_deploy-issue-and-transfer-tokens.md)

"Step 6: Issue Tokens" says

> This time the output contains several actions: one issue action and **three transfer actions**.

However, in the output below, there seems to be no transfer actions. (In "Step 7: Transfer Tokens", there are indeed three transfer actions). Please add some explanation about transfer actions when issuing tokens.
```
executed transaction: d1466bb28eb63a9328d92ddddc660461a16c405dffc500ce4a75a10aa173347a 128 bytes 205 us
# eosio.token <= eosio.token::issue {"to":"alice","quantity":"100.0000 SYS","memo":"memo"}
warning: transaction executed locally, but may not be confirmed by the network yet ]
```