close ConfigKey tag

Author: adinauer

docs/platforms/java/common/configuration/options.mdx

@@ -168,6 +168,8 @@ Set this boolean to `true` to force a call to `Sentry.init` to re-initialize the
 
 _(New in version 8.0.0)_
 
+</ConfigKey>
+
 <ConfigKey name="enable-backpressure-handling">
 
 Set this boolean to `false` to disable automatic downsampling of transactions while the system is under load. The `tracesSampleRate` is halved for every failing health check up to 10 times, (roughly 0.001% of the original `tracesSampleRate`). Any positive health check will reset `tracesSampleRate` to its original value. Health checks run in the background every 10 seconds, checking for queue drops and rate limiting. Note: Starting with version 7.8.0 backpressure handling has changed from opt-in to opt-out.