Apply feedback to align with contributing guidelines and add new snippet to transform from sc to pc

Author: ACR1209

snippets/ruby/array-manipulation/binary-search.md

@@ -26,7 +26,7 @@ def binary_search(array, target)
   return nil
 end
 
-# Usage
+# Usage:
 array = [1, 3, 5, 7, 9]
 target = 5
 result = binary_search(array, target)

snippets/ruby/array-manipulation/chunk-array.md

@@ -10,7 +10,7 @@ def chunk_array(array, size)
     array.each_slice(size).to_a
 end
 
-# Example usage:
+# Usage:
 arr = [1, 2, 3, 4, 5, 6, 7, 8, 9]
 chunked_arr = chunk_array(arr, 2)
 puts chunked_arr.inspect # Output: [[1, 2], [3, 4], [5, 6], [7, 8], [9]]

snippets/ruby/array-manipulation/matrix-transpose.md

@@ -13,7 +13,7 @@ def transpose_matrix(matrix)
     matrix.first.zip(*matrix[1..-1])
 end
 
-# Usage
+# Usage:
 matrix = [
     [1, 2, 3],
     [4, 5, 6],

snippets/ruby/data-structures/binary-tree.md

@@ -10,7 +10,7 @@ def capitalize_words(str)
   str.split.map(&:capitalize).join(' ')
 end
 
-# Usage
+# Usage:
 sentence = "ruby is awesome"
 puts capitalize_words(sentence) # Output: "Ruby Is Awesome"
 ```

snippets/ruby/data-structures/doubly-linked-list.md

@@ -13,7 +13,7 @@ def count_word_occurrences(text)
     occurrences
 end
 
-# Usage
+# Usage:
 text = "ruby is awesome and Ruby is fun"
 puts count_word_occurrences(text) # Output: {"ruby"=>2, "is"=>2, "awesome"=>1, "and"=>1, "fun"=>1}
 ```

snippets/ruby/data-structures/singly-linked-list.md

@@ -10,7 +10,7 @@ def remove_punctuation(str)
     str.gsub(/[[:punct:]]/, '')
 end
 
-# Usage
+# Usage:
 text = "Hello, Ruby! How's it going?"
 puts remove_punctuation(text) # Output: "Hello Ruby Hows it going"
 ```

snippets/ruby/string-manipulation/capitalize-words.md

@@ -1,16 +1,18 @@
 ---
 title: Transform Camel Case to Snake Case
-description: Converts a Camel Case string to Snake case.
+description: Converts a Camel or Pascal Case string to Snake case.
 author: ACR1209
-tags: string,convert,camel-case,snake-case
+tags: string,convert,camel-case,snake-case,pascal-case
 ---
 
 ```rb
 def camel_to_snake(str)
-    str.gsub(/([A-Z])/, '_\1').downcase
+    str.gsub(/([A-Z])/, '_\1').sub(/^_/, '').downcase
 end
 
-# Usage
+# Usage:
 camel_case = "camelCaseToSnakeCase"
+pascal_case = "PascalCaseToSnakeCase"
 puts camel_to_snake(camel_case) # Output: "camel_case_to_snake_case"
+puts camel_to_snake(pascal_case) # Output: "pascal_case_to_snake_case"
 ```