GitLab

* Add pad_truncation to es/_toctree.yml

* Add pad_truncation.md to es/

* Translated first two paragraph

* Translated paddig argument section

* Translated truncation argument section

* Translated final paragraphs

* Translated table

* Fixed typo in the table of en/pad_truncation.md

* Run make style | Fix a word

* Add Padding (relleno) y el Truncation (truncamiento) in the final paragraphs

* Fix relleno and truncamiento words