chore: updated JMESPath function

content/en/blog/general/why-chainsaw-is-unique/index.md

@@ -120,14 +120,14 @@ spec:
   template:
     spec:
       (containers[?securityContext == null]):
-        (len(@)): 0
+        (length(@)): 0
 ```
 
 In the assertion above, the first three fields `spec`, `template`, and `spec` are basic projections that simply take the content of their respective fields and pass that to descendants.
 
-`(containers[?securityContext == null])` is a JMESPath expression filtering the `containers` array, selecting only the element where `securityContext` is `null`. This projection results in a new array that is passed to the descendant (`(len(@))` in this case).
+`(containers[?securityContext == null])` is a JMESPath expression filtering the `containers` array, selecting only the element where `securityContext` is `null`. This projection results in a new array that is passed to the descendant (`(length(@))` in this case).
 
-`(len(@))` is another JMESPath expression that computes the length of the array. There's no more descendant at this point. We're at a leaf of the YAML tree and the array length we just computed is then compared against 0.
+`(length(@))` is another JMESPath expression that computes the length of the array. There's no more descendant at this point. We're at a leaf of the YAML tree and the array length we just computed is then compared against 0.
 
 If the comparison matches, the assertion will be considered valid; if not, it will be considered failed.