* Update pvoutput.markdown
Replaced some single quotes with double quotes in the pvoutput template. Current template throwing errors similar to these (line numbers will vary based on configuration.yaml file:
```
Configuration invalid
CHECK CONFIG
Error loading /config/configuration.yaml: while parsing a block mapping
in "/config/configuration.yaml", line 408, column 9
expected <block end>, but found '<scalar>'
in "/config/configuration.yaml", line 408, column 56
```
Updated template configuration fixes these errors.
* ✏️ Tweak
Co-authored-by: Franck Nijhof <frenck@frenck.nl>