greyhawk
diff --git a/‎README.md‎
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diff --git a/‎index.ipynb‎
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diff --git a/‎payment-any.jpg‎
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diff --git a/‎payment-big.jpg‎
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diff --git a/‎payment-small.jpg‎
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@@ -228,9 +228,7 @@ conda update anaconda
 
 觉得有用打赏一下？
 
-![](payment-small.jpg)
-![](payment-big.jpg)
-![](payment-any.jpg)
+![](payment.jpeg)
 
 
 打个广告：
 
@@ -278,9 +278,7 @@
    "source": [
     "觉得有用打赏一下？\n",
     "\n",
-    "![](payment-small.jpg)\n",
-    "![](payment-big.jpg)\n",
-    "![](payment-any.jpg)\n",
+    "![](payment.jpeg)\n",
     "\n",
     "打个广告：\n",
     "\n",