Improve clarity of Metric Signal overview#3900

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jaydeluca wants to merge 9 commits intoopen-telemetry:mainfrom jaydeluca:metric-signal-updates

+105-90

Commits on Feb 24, 2024

rewrite some of the metric signals overview section
jaydeluca
committed

Commits on Feb 28, 2024

updates to metric signal based on current spec
jaydeluca
committed