Update CODEOFCONDUCT.md

Co-authored-by: Brian Rose <[email protected]>

Author: erogluorhan

CODEOFCONDUCT.md

@@ -12,7 +12,7 @@ Examples of behaviors that contribute to a positive environment include:
 - Being considerate, respectful, and collaborative
 - Communicating openly with respect for others, critiquing ideas rather than individuals and gracefully accepting criticism
 - Acknowledging the contributions of others
-- Avoid personal attacks directed toward other contributors
+- Avoiding personal attacks directed toward other contributors
 - Be mindful of your surroundings and of your fellow contributors
 - Alert UCAR staff and suppliers/vendors if you notice a dangerous situation or someone in distress
 - Respect the rules and policies of the project and venue