[IMP] Website: update pages page

[guga-odoo]

task-4459299

[robodoo]

[auva-odoo]

Hello @guga-odoo, thank you so much for your work on this! I added a few comments and suggestions (a few of them are actually about the same things, but I felt it was clearer if I repeated them 😉 )

Also, in general, I use the following rules to decide whether the first letter after a colon (in a list item describing a field for example) should be capitalized and should have a period at the end:

1. Capitalize the first letter and add a period at the end if it's a full sentence.
2. Don't capitalize and don't use a period if it's not (in this case you could use a semi-colon at the end, not mandatory though)
3. If some items in the list do have a full sentence after the colon and some don't, uniformize (i.e. either use capitals/periods/semi-colons or don't use them, but don't use a mix of both in the same list). Consistency is key 🙂

I didn't add individual comments for this in this PR but could you please go through the doc and check all list (items) this might apply to? (there are a few exceptions in this doc, ofc)

Thank you!!