Updates to getting started page (#1673)
Updates to getting started page (#1673)

* Updates to getting started page

* NodeJS --> node

* Removed one lingering "we"

* Update getting-started/README.md

Co-authored-by: Mayur Kale <7b800b27b32ee7e0fdb93e2c1dbfb3464ab1d5e6@google.com>

Co-authored-by: Mayur Kale <7b800b27b32ee7e0fdb93e2c1dbfb3464ab1d5e6@google.com>
open-telemetry/opentelemetry-js,open-telemetry/opentelemetry-js,open-telemetry/opentelemetry-js,open-telemetry/opentelemetry-js