Work some more on lattices 2

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

content/blog/01_spa_agda_lattices.md

@@ -422,7 +422,7 @@ only thing we needed is to be able to check and see if two elements are
 equal or not; this is called _decidable equality_. Since that's the only
 thing we used, this means that we can define an "above/below" lattice like this
 for any type for which we can check if two elements are equal. In Agda, I encoded
-this using a parameterized module:
+this using a [parameterized module](https://agda.readthedocs.io/en/latest/language/module-system.html#parameterised-modules):
 
 {{< codelines "Agda" "agda-spa/Lattice/AboveBelow.agda" 5 8 >}}