gotelemetry: add page (#11287)

pages/common/gotelemetry.md

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+# gotelemetry
+
+> A tool for managing Go telemetry data and settings.
+> More information: <https://telemetry.go.dev/privacy#collection>.
+
+- Enable telemetry uploading:
+
+`gotelemetry on`
+
+- Disable telemetry uploading:
+
+`gotelemetry off`
+
+- Run a Web Viewer for local telemetry data:
+
+`gotelemetry view`
+
+- Print the current telemetry environment:
+
+`gotelemetry env`
+
+- Show details about any subcommand:
+
+`gotelemetry help {{subcommand}}`