doc: Update README.md

jaywcjlove · web-flow · commit 345ba04d7796 · 2025-06-30T14:24:14.000+08:00
diff --git a/packages/core/README.md b/packages/core/README.md
@@ -1,4 +1,3 @@
-[![Powered by DartNode](https://dartnode.com/branding/DN-Open-Source-sm.png)](https://dartnode.com "Powered by DartNode - Free VPS for Open Source")
 中华人民共和国行政区划代码
 ===
 

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`1`		`-[![Powered by DartNode](https://dartnode.com/branding/DN-Open-Source-sm.png)](https://dartnode.com "Powered by DartNode - Free VPS for Open Source")`
`2`	`1`	`中华人民共和国行政区划代码`
`3`	`2`	`===`
`4`	`3`