Add metric naming conventions (#108)
Add metric naming conventions (#108)

* Proposal for metric naming conventions

* Add Node example metrics

* Node.js instead of Node

* Rename file, add Prometheus quote

* Second round of revisions

* Working group feedback

* More feedback changes

* Minor clarifications

* Word choice

* Whitespace to check CLA status

* Update text/metrics/0108-naming-conventions.md

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

* Update text/metrics/0108-naming-conventions.md

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

* Update text/metrics/0108-naming-conventions.md

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

* Update text/metrics/0108-naming-conventions.md

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

* Update text/metrics/0108-naming-conventions.md

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

* Update text/metrics/0108-naming-conventions.md

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

* Update text/metrics/0108-naming-conventions.md

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

* Code review feedback, remove discussion section

* Remove some discussion topics, and fix an example

* Rename OTEP 108 to metric naming _guidelines_

Co-authored-by: Tyler Yahn <b79042b10fd9cd75597e3dac7c4e4fe9e14fe996@users.noreply.github.com>
Co-authored-by: Bogdan Drutu <3f8e17047c2434e5c82a61403e56b9ef3e226d99@gmail.com>
Co-authored-by: jfoote <8bfa1f574ed617c7c0eb9d9d86090fc66fd4bedc@newrelic.com>
Co-authored-by: Yuri Shkuro <16e6d622505a30b44c05fb8b6dfd2d798f782d4d@users.noreply.github.com>
open-telemetry/oteps