Updating collapse cheatsheet: rewritten in latex

[SebKrantz]

Contributed Cheat Sheet Information

Cheat Sheet Name:
1 sentence description of the contents:
Your Name (as you want to be credited on the website):
A link to your github/website (optional):
A link to relevant package documentation (optional):
Date created/updated (Month YYYY format):

Please be sure you've included the Creative Commons License:

• [x] Add CC-BY-SA Your Name to copywrite under the Creative Commons on the cheat sheet

Check that you have done the following:

• [x] Used descriptive file names, something like package-name.pdf or task-name.pdf and did not include "cheat sheet" in the title.
• [x] Included a PDF file of entire cheat sheet.
• [x] Included a PNG file of the first page size 1100 x 850 in the pngs folder (for the website thumbnail).
• [x] Included a Keynote or PowerPoint or similar file in the relevant folder (helps translators who want to translate your cheat sheet).

Translated Cheat Sheet Information

Cheat Sheet Name:
Language:
Your Name (as you want to be credited on the website):
Date created/updated (Month YYYY format):

Check that you have done the following:

• [ ] Added the language abbreviation to the file name (ex. data-transformation_es.pdf).
• [ ] Included a PDF file of your translated cheat sheet to the translation folders.
• [ ] Included a Keynote or PowerPoint file for your translated cheat sheet to the translation folder.
• [ ] Not duplicated an existing translation. If an existing translation exists, I have edited it.