use wayback machine to provide its backed PDF link

Co-authored-by: David Ordás <[email protected]>

Author: eshellman

Diff for: more/free-programming-cheatsheets.md

@@ -197,4 +197,4 @@
 
 * [DeepLearning- Keras & TF Cheat Sheet](https://cheatography.com/chesterhsieh/cheat-sheets/deeplearning-keras-and-tf/pdf/) - Cheatography (PDF)
 * [TensorFlow Quick Reference Table](https://secretdatascientist.com/tensor-flow-cheat-sheet/) - Secret data scientist (HTML)
-* [TensorFlow v2.0 Cheat Sheet](https://www.kaggle.com/getting-started/134439) - Kaggle.com (HTML, Image)
+* [TensorFlow v2.0 Cheat Sheet](https://web.archive.org/web/20200922212358/https://www.aicheatsheets.com/static/pdfs/tensorflow_v_2.0.pdf) - Altoros (PDF) *(:card_file_box: archived)*