diff --git a/src/posts/2022-10-16-the-arrow-operator.md b/src/posts/2022-10-16-the-arrow-operator.md
index 24f8297..95bda34 100644
--- a/src/posts/2022-10-16-the-arrow-operator.md
+++ b/src/posts/2022-10-16-the-arrow-operator.md
@@ -1,11 +1,11 @@
 ---
 title: "The nix arrow operator"
-keywords: nix, language, programming-language
+keywords: nix, short, language, programming-language
 image: './images/nix_banner.png'
 series: "Nix shorts"
 ---
 
-There is a specal operator in nix, written as `->`. It is not a c dereference struct pointer operator, nor is it a haskell function type definition. It is a boolean operator, which represents the "implies arrow" from [propositional logic][prop-log]. This is especially useful in nix, because of its usage in modules.
+There is a specal operator in nix, written as `->`. It is not a [C dereference struct pointer operator][c-deref-struct], nor is it a [haskell function type definition][haskell-function]. It is a boolean operator, which represents the "implies arrow" from [propositional logic][prop-log]. This is especially useful in nix, because of its usage in modules.
 
 ## The `myService` module
 
@@ -53,4 +53,6 @@ in {
 }
 ```
 
+[c-deref-struct]: https://www.digitalocean.com/community/tutorials/arrow-operator-c-plus-plus
+[haskell-function]: http://learnyouahaskell.com/functors-applicative-functors-and-monoids
 [prop-log]: https://iep.utm.edu/prop-log/