[DO NOT MERGE] Testing a build from outside Elastic

Should not build docsmobile

docs/en/serverless/observability-overview.mdx

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 <div id="observability-introduction"></div>
 
+
 ((observability)) provides granular insights and context into the behavior of applications running in your environments.
 It's an important part of any system that you build and want to monitor. 
 Being able to detect and fix root cause events quickly within an observable system is a minimum requirement for any analyst.