Replace file contents with standard template (#4133)

Signed-off-by: Saburesh07 <220188172+Saburesh07@users.noreply.github.com>

Author: Saburesh07

CODE_OF_CONDUCT.md

@@ -1 +1,3 @@
-Please refer to the Chef Community Code of Conduct at https://www.chef.io/code-of-conduct/
+# Chef Code of Conduct
+
+Participants in this project must adhere to the [Chef Code of Conduct](https://chef.github.io/chef-oss-practices/policies/code-of-conduct/).