feat(blog): publish Odoo 20 Is Live on Our Servers — Here Is What Changed

New post blog/posts/odoo-20-is-live-on-our-servers-here-is-what-changed.html
(chrome copied from blog/posts/track-the-oca-modules-you-actually-use.html,
body verbatim from the inbox source), plus the blog/index.json entry (first),
one sitemap.xml <url> and one llms.txt blog line.

llms.txt

@@ -49,6 +49,7 @@
 
 ## Blog posts
 
+- [Odoo 20 Is Live on Our Servers — Here Is What Changed](https://odoo4projects.com/blog/posts/odoo-20-is-live-on-our-servers-here-is-what-changed.html) — 2026-11-03 — Two weeks. That is how long it took us to bring up Odoo 20 on our servers, with every new feature that comes with it. It is live now — if your instance runs with us, the engine underneath it just moved forward.
 - [From a Spreadsheet to a Running ERP in Ten Thursday Sessions](https://odoo4projects.com/blog/posts/from-a-spreadsheet-to-a-running-erp.html) — 2026-11-02 — Most small businesses do not run on an ERP. They run on a spreadsheet, a messaging group, and one person's memory. It works — until that person is on holiday.
 - [ODOO4projects Supports the OCA Paraguay Internationalization Hackathon](https://odoo4projects.com/blog/posts/oca-paraguay-internationalization-hackathon.html) — 2026-10-29 — Two online days to push Odoo's Paraguayan localisation forward — and we are supporting them.
 - [How to Install Odoo Modules Using Git — and the Quick Git Route That Skips the Console](https://odoo4projects.com/blog/posts/how-to-install-odoo-modules-using-git.html) — 2026-10-28 — Every business is slightly different, which is why a system that only does the standard thing is only ever half a system.