Remove MPU from Glossary (#1537)

* docs(Glossary): explain what were MPUs They are gone from our DCR-rendered Fronts! guardian/dotcom-rendering#9121 frontend-fronts still have MPUs
guardian · Dec 19, 2023 · 3f74450 · 3f74450
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commit 3f74450
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/docs/Glossary.md b/docs/Glossary.md
@@ -70,5 +70,4 @@ It’s typically used for a breaking news story. Dynamos are rendered differentl
 
 ## MPU - Main Promotional Unit
 
-Some front layouts have a MPU. This is a slot for an advert.
-
+Until [Oct 2023](https://github.com/guardian/dotcom-rendering/pull/9047) when we switched DCR-rendered fronts to banner ads, Containers could contain MPU ad slots between [Cards](#card). The MPU is typically 300×250 pixels in size.