fix broken example link by directly link to the example directory (#1071)
fix broken example link by directly link to the example directory (#1071)

* fix broken example link to the example directory

* Update README.md

Co-authored-by: Tyler Yahn <b79042b10fd9cd75597e3dac7c4e4fe9e14fe996@users.noreply.github.com>

Co-authored-by: Tyler Yahn <b79042b10fd9cd75597e3dac7c4e4fe9e14fe996@users.noreply.github.com>
open-telemetry/opentelemetry-go,open-telemetry/opentelemetry-go