Sam Miller 5a25952167 Website: Fix documentation of Flamenco Worker YAML task types list
The example on the project website is incorrect:

```
task_types: blender, ffmpeg, file-management, misc
```

It results in an error:

```
loading configuration: yaml: unmarshal errors:\n line 2:
  cannot unmarshal ||str "blender..." into []string
```

The fix seems to be adding square brackets around the list of comma
delineated tasks:

```
task_types: [blender, ffmpeg, file-management, misc]
```

This results in output with the confirmation that
`taskType=["blender","ffmpeg","file-management","misc"]`
2022-08-31 15:42:58 +02:00
..
2022-08-03 12:59:38 +02:00