odoo/documentation#12735

Created by fw-bot
Merged at 0d9dbe1561dec488ed836d76a82b40ec2e7100dc

Statuses:

label
odoo-dev:saas-18.1-18.0-website-howto-building-blocks-bram-426727-fw
head
8d7f5cc6b9cd066b5c9eef33c06a1a7837e89c00
merged
2 months ago by Brandon Mercier (bram)
odoo/documentation
18.0 #12721
saas-18.1 #12735
saas-18.2 #12737
saas-18.3
master #12743

[FW][IMP] howto/website_themes: Building blocks page update

This PR applies the following changes:
- Change the Github urls to the correct version of Odoo
- Adapt the way of creating a snippet template and how to add it to the builder
- Add explanation about how to make a custom snippet "inner content"

task-4316707

Forward-Port-Of: #12721