Improve section "Data Structures" in the tutorial

Documentation

The "More on Lists" subsection in the "Data Structures" section (Doc/tutorial/datastructures.rst) is the only place in the tutorial that contains formal definitions using Sphinx directives. They mostly duplicate descriptions in the library reference, and index entries refer to ones in the library reference, not in the tutorial. The list class is the only class whose methods are described so in the tutorial. The tutorial perhaps do not need such formal descriptions of all these methods. We could do like with other builtin functions and methods of other builtin classes, and simply add references to their real descriptions.

References to many methods of built classes did not work until recently. This might be one of reasons of exisiting such section.

This was discussed in https://discuss.python.org/t/a-small-typo-on-5-1-more-on-lists-section/106150. cc @nedbat

Comece com Doc/tutorial/datastructures.rst e sua subseção "More on Lists"; em seguida, compare as descrições formais dos métodos com suas correspondentes na referência da biblioteca. Consulte a discussão recente para obter contexto; o trabalho estará concluído quando o tutorial evitar definições duplicadas desnecessárias, mantendo referências funcionais para as descrições reais.