Wrong MISP config in conf/application.sample

Change the sample configuration for MISP in application.sample.

New Configuration should look like this : 

```
      #url=["https://mymispserver_1", "https://mymispserver_2"]
      #key=["mykey_1", "mykey_2" ]
      #certpath=["", ""]
      #name=["misp_server_name_1", "misp_server_name_2"]
```