Update README.md

README.md

@@ -24,6 +24,12 @@ This work is [licensed](LICENSE) under a GNU Affero General Public License v3.0
 ## As seen on [Hacker News](https://web.archive.org/web/20210825160918/https://news.ycombinator.com/news):
 ![](https://github.com/marceloprates/prettymaps/raw/main/prints/hackernews-prettymaps.png)
 
+<picture>
+  <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/svg?repos=marceloprates/prettymaps&type=Date&theme=dark" />
+  <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/svg?repos=marceloprates/prettymaps&type=Date" />
+  <img alt="Star History Chart" src="https://api.star-history.com/svg?repos=star-history/star-history&type=Date" />
+</picture>
+
 ## [prettymaps subreddit](https://www.reddit.com/r/prettymaps_/)
 ## [Google Colaboratory Demo](https://colab.research.google.com/github/marceloprates/prettymaps/blob/master/notebooks/examples.ipynb)