Added a new cheat sheet (#8236)

more/free-programming-cheatsheets.md

@@ -183,6 +183,7 @@
 * [Eclipse Cheat sheet](https://cheatography.com/tag/eclipse/) - Cheatography
 * [Editor VI - Guia de Referência (pt)](https://aurelio.net/curso/material/vim-ref.html) - Aurelio Marinho Jargas (HTML)
 * [GNU Emacs Reference Card](https://www.gnu.org/software/emacs/refcards/pdf/refcard.pdf) - GNU.org (PDF)
+* [Jupyter Notebook Cheat sheet](http://datacamp-community-prod.s3.amazonaws.com/21fdc814-3f08-4aa9-90fa-247eedefd655) - Datacamp (PDF)
 * [Vim Avançado (pt)](https://aurelio.net/vim/vim-avancado.txt) - Aurelio Marinho Jargas (HTML)
 * [Vim Básico (pt)](https://aurelio.net/vim/vim-basico.txt) - Aurelio Marinho Jargas (HTML)
 * [Vim Cheat Sheet](https://www.cs.cmu.edu/~15131/f17/topics/vim/vim-cheatsheet.pdf) - Allison McKnight (PDF)