Clarify tracer name for self-instrumenting apps/libraries (#1327)
Clarify tracer name for self-instrumenting apps/libraries (#1327)

* Update api.md

Contradictory statement in Get Tracer API vs Glossary definition of "Instrumentation Library" meaning.

* Update specification/trace/api.md

Co-authored-by: Christian Neumüller <f80c045e0b29a8a0d8cfc19e571e9d9523c3f1c5@neumueller.me>

* Update specification/trace/api.md

Co-authored-by: Armin Ruech <5375d2e98a78036adfbf90c7f7841c3894b65d4b@dynatrace.com>

Co-authored-by: Christian Neumüller <f80c045e0b29a8a0d8cfc19e571e9d9523c3f1c5@neumueller.me>
Co-authored-by: Armin Ruech <5375d2e98a78036adfbf90c7f7841c3894b65d4b@dynatrace.com>
open-telemetry/opentelemetry-specification,open-telemetry/opentelemetry-specification