docs: fix mismatched curly brace in viz docs The new Viz doc example is missing a trailing curly brace. Add the missing '}' to the example and verify the example no longer gives JSON errors when attempting to use it on the Viz page. Change-Id: I8d552f6a152856aef64624fcbcb36105cc08ce60
Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.
See https://perfetto.dev/docs or the /docs/ directory for documentation.