Add a description line to the import spreadsheet template on the producers platform

[stephanegigandet]

This issue is part of #9872 , please see the parent issue for context and guidance on how to work on this issue.

We want to add 2 lines to the import template (generated by https://world.pro.openfoodfacts.org/cgi/generate_sample_import_file.pl ):

• a description line that should contain what we currently have in the comments in the header line (and then we can remove the comments)
• an example line

This issue is about adding the description line.

We also need add one first column that just contains "description" and "example" for those 2 lines, and nothing for the the other rows.

See the template proposal: https://docs.google.com/spreadsheets/d/148PWIsSfDRsj8gLJ7cHbQtdapIEscUwX/edit#gid=1221199414 :

We will need to change the importing so that rows that contain something in the first column are skipped.

[deveshidwivedi]

Hi! I am interested and have started work on this.

[deeksha81]

hey im interested in solving this issue

[sangwan-smriti]

hey, im interested in solving this issue.