Fix mistakes in blog posts

content/blog/05_compiler_execution.md

@@ -46,7 +46,7 @@ defn snd p = {
         P x y -> { y }
     }
 }
-defn slow x = { returns x after waiting for 4 seconds }
+defn slow x = { returns x after waiting for 1 second }
 defn main = { fst (P (slow 320) (slow 6)) }
 ```