frontpage link

Author: oscarbranson

book/intro.md

@@ -61,7 +61,7 @@ Atmosphere 💨
 Movement, pollution and aerosols.
 :::
 
-<!-- :::{grid-item-card}
+:::{grid-item-card}
 :link: 05_globalenvironment/intro
 :link-type: doc
 :class-header: bg-light
@@ -70,7 +70,7 @@ Global Environment 🌍
 ^^^
 
 Fluids on a rotating planet
-::: -->
+:::
 
 <!-- :::{grid-item-card}
 :link: 06_oceancarbon/00_intro