Fix array document (#564)

exercism · Nov 20, 2023 · 0055bd6 · 0055bd6
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diff --git a/concepts/array/about.md b/concepts/array/about.md
@@ -40,6 +40,7 @@ To define a multi-dimensional array, you can either write an array of arrays lit
 [[1, 2], [3, 4]]                    # => [[1, 2], [3, 4]]
 numbers = Array(Array(Int32)).new() # => []
 numbers << [1, 2]                   # => [[1, 2]]
+```
 
 ## Add an element to an array
 

diff --git a/concepts/array/introduction.md b/concepts/array/introduction.md
@@ -40,6 +40,7 @@ To define a multi-dimensional array, you can either write an array of arrays lit
 [[1, 2], [3, 4]]                    # => [[1, 2], [3, 4]]
 numbers = Array(Array(Int32)).new() # => []
 numbers << [1, 2]                   # => [[1, 2]]
+```
 
 ## Add an element to an array
 

diff --git a/exercises/concept/language-list/.docs/introduction.md b/exercises/concept/language-list/.docs/introduction.md
@@ -40,6 +40,7 @@ To define a multi-dimensional array, you can either write an array of arrays lit
 [[1, 2], [3, 4]]                    # => [[1, 2], [3, 4]]
 numbers = Array(Array(Int32)).new() # => []
 numbers << [1, 2]                   # => [[1, 2]]
+```
 
 ## Add an element to an array