Updated adopted date and adoption language.

CODE_OF_CONDUCT.md

@@ -79,6 +79,6 @@ This Code of Conduct was originally adapted from the [Contributor Covenant](http
 We then aligned it with the UCAR Participant Code of Conduct, which also borrows from the American Geophysical Union (AGU) Code of Conduct.
 The UCAR Participant Code of Conduct applies to both UCAR employees as well as participants in activities run by UCAR.
 The original version of this for all software projects that have strong management from UCAR or UCAR staff is available on the UCAR website at https://doi.org/10.5065/6w2c-a132.
-The date that it was adopted by this project was Mar/31st/2020
+The date that it was adopted by this project was 2020-04-08 and replaces the previous version.
 When responding to complaints, UCAR HR and ODEI will do so based on the latest published version.
 Therefore, any project-specific changes should follow the [Process for Changes](#process-for-changes) section above.