Change URL

Author: nakamura-to

README.md

@@ -13,7 +13,7 @@ The plugin supports Java and Kotlin.
 How to use
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-See [Gradle Plugin Portal](https://plugins.gradle.org/plugin/org.seasar.doma.compile).
+See [Gradle Plugin Portal](https://plugins.gradle.org/plugin/org.domaframework.doma.compile).
 
 What does the plugin do ?
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