Fix typo in Introduction section (#820)

* Fix typo in Introduction section

Fix typo: "LISt Processing" to "LIST Processing" in the introduction section

* Use `configlet generate` to update exercise documentation

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Co-authored-by: Mark Simpson <[email protected]>

Author: FazleRabbbiferdaus172

Diff for: concepts/lists/introduction.md

@@ -1,6 +1,6 @@
 # Introduction
 
-Given that the name of the language is Lisp which stands of _LISt Processing_ one might assume that the language has facilities for handling lists of items, and you'd be correct!
+Given that the name of the language is Lisp which stands of _LIST Processing_ one might assume that the language has facilities for handling lists of items, and you'd be correct!
 
 While Common Lisp has other data structures as well as lists, lists are still heavily used.
 

Diff for: exercises/concept/leslies-lists/.docs/introduction.md

@@ -2,7 +2,7 @@
 
 ## Lists
 
-Given that the name of the language is Lisp which stands of _LISt Processing_ one might assume that the language has facilities for handling lists of items, and you'd be correct!
+Given that the name of the language is Lisp which stands of _LIST Processing_ one might assume that the language has facilities for handling lists of items, and you'd be correct!
 
 While Common Lisp has other data structures as well as lists, lists are still heavily used.