Fix link to instrumentation (#1826)
Fix link to instrumentation (#1826)

Co-authored-by: Leighton Chen <fc3915c589827d8c520f66f2c36dd2a5b4f0521e@microsoft.com>
Co-authored-by: alrex <1e5a92690ae5061b029620512ac8ae33d4f3a3b3@lightstep.com>

open-telemetry/opentelemetry-python,open-telemetry/opentelemetry-python