feat: Add webpack cheatsheet (#7966)

- Add webpack cheatsheet

more/free-programming-cheatsheets.md

@@ -41,6 +41,7 @@
 * [SpringBoot](#springboot)
 * [SQL](#sql)
 * [Tensorflow](#tensorflow)
+* [Webpack](#webpack)
 
 
 ### APL
@@ -362,3 +363,8 @@
 * [DeepLearning- Keras & TF Cheat Sheet](https://cheatography.com/chesterhsieh/cheat-sheets/deeplearning-keras-and-tf/pdf/) - Chester Hsieh, Cheatography (PDF) *(:construction: in process)*
 * [TensorFlow Quick Reference Table](https://secretdatascientist.com/tensor-flow-cheat-sheet/) - Secret data scientist (HTML)
 * [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)*
+
+
+### Webpack
+
+* [Webpack cheatsheet](https://devhints.io/webpack) - devhints, Rico Santa Cruz (HTML)