Use component name of ''

This makes it so that the URL contains security in the root of the deploy
folder. We will do this until we decide to add projects other than the
security related projects.

docs/spring-security-docs.gradle

@@ -23,7 +23,7 @@ tasks.register("generateAntora") {
 		def outputFile = new File("$buildDir/generateAntora/antora.yml")
 		outputFile.getParentFile().mkdirs()
 		outputFile.createNewFile()
-		outputFile.setText("""name: security
+		outputFile.setText("""name: ''
 title: Spring Security
 version: ~
 display_version: 6.0