Zabbix

...G...... [ZBXNEXT-8360] fixed docker plugin readme in Zabbix agent 2

* commit 'd4067389c497a4c6375bc16f4c9a70db09f7aba3':
  ...G...... [ZBXNEXT-8360] readme clean up
  ...G...... [ZBXNEXT-8360] fixed docker plugin readme in Zabbix agent 2

(cherry picked from commit cde18232edcc1e77e4305d5772d52dee84bffbf1)