I'm considering updating the «jewel in the crown» of Debian, which is of
course the Installation Guide, a must for new users and also the older ones.
Thank you for wanting to help in this translation. In the past I contributed huge chunks of time to it but have not been able to keep up.
But first I'd like to know what the workflow would be for the job to be
done, considering I'm used to PO files and not XML based translations. Also, what's
lacking and what needs to be done (percentage of missing translations, fuzzy strings and so on).
Updating the Installation Guide is pretty straightforward, you first have to download the GIT repository and the go directly to the po/es/ directory. Updating the different translation files you find there. The fact that the document is based on XML should not be a problem.
To test the translation you can build the documentation using the scripts in the build/ directory (by setting the "languages" variable you can make the scripts build only the content in Spanish and skip the other languages.
If you do not have (yet) access you can send me the PO files and I will upload to Salsa.
Best regards
Javier