Add code-of-conduct file. (#2341)

Anuraag Agrawal · web-flow · commit 5d8c6c3e671e · 2021-02-19T16:24:41.000+09:00
diff --git a/code-of-conduct.md b/code-of-conduct.md
@@ -0,0 +1,3 @@
+# OpenTelemetry Community Code of Conduct
+
+Please refer to our [OpenTelemetry Community Code of Conduct](https://github.com/open-telemetry/community/blob/main/code-of-conduct.md)

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+# OpenTelemetry Community Code of Conduct`
	`2`	`+`
	`3`	`+Please refer to our [OpenTelemetry Community Code of Conduct](https://github.com/open-telemetry/community/blob/main/code-of-conduct.md)`