Remove top block in docs/configuration/README.md

Author: Goooler

docs/configuration/README.md

@@ -1,7 +1,3 @@
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-api: api/com/github/jengelman/gradle/plugins/shadow
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 # Configuring Shadow
 
 The [`ShadowJar`](../api/shadow/com.github.jengelman.gradle.plugins.shadow.tasks/-shadow-jar/index.html) task type extends from Gradle's