docs: fix broken star history chart

The star history chart in the README is currently broken and cannot be displayed. Update the link so the project growth chart works again and visitors can see the stars trend as before.

README.md

@@ -342,7 +342,7 @@
 
 ## Stars 趋势
 
-[![Star History Chart](https://api.star-history.com/svg?repos=doocs/source-code-hunter&type=Date)](https://star-history.com/#doocs/source-code-hunter&Date)
+[![Star History Chart](https://star-history.dera.page/svg?repos=doocs/source-code-hunter&type=date)](https://star-history.dera.page/#doocs/source-code-hunter&type=date)
 
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