Add Star History section to README

Added a section for Star History with a chart to visualize repository stars over time.

Author: Jaben

README.md

@@ -102,6 +102,16 @@ See the [examples folder](examples/) for complete working console applications.
 
 See [CHANGES.MD](CHANGES.MD) for the full release history.
 
+## Star History
+
+<a href="https://www.star-history.com/?repos=ChangemakerStudios%2FGotenbergSharpApiClient&type=date&legend=bottom-right">
+ <picture>
+   <source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=ChangemakerStudios/GotenbergSharpApiClient&type=date&theme=dark&legend=bottom-right" />
+   <source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=ChangemakerStudios/GotenbergSharpApiClient&type=date&legend=bottom-right" />
+   <img alt="Star History Chart" src="https://api.star-history.com/chart?repos=ChangemakerStudios/GotenbergSharpApiClient&type=date&legend=bottom-right" />
+ </picture>
+</a>
+
 ## License
 
 [Apache 2.0](LICENSE)