Update maps.livemd - Fix arrow description · DockYard-Academy/curriculum@24a9a6f

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Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/cache@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Application.get_env/3 is discouraged in the module body, use Application.compile_env/3 instead

use Bitwise is deprecated. import Bitwise instead

defp markdown_to_block_ast/1 is private, @doc attribute is always discarded for private functions/macros/types

defp code_block_delimiter/1 is private, @doc attribute is always discarded for private functions/macros/types

defp normalize_comment_lines/1 is private, @doc attribute is always discarded for private functions/macros/types

defp markdown_from_ast/1 is private, @doc attribute is always discarded for private functions/macros/types

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