Merge pull request #323 from mwcraig/CoCo4

Add new CoCo to policies

Author: pllim

policies/coco-operating-policies.md

@@ -96,6 +96,14 @@ CoCo members typically have owner privileges of the Astropy organization, but it
 
 ## CoCo membership history
 
+### CoCo4 (Election October 2022)
+
+- Kelle Cruz - term ends at 2024 election
+- Moritz Gunther - term ends at 2023 election
+- Derek Homeier - term ends at 2025 election
+- Pey Lian Lim - term ends at 2025 election
+- Erik Tollerud - term ends at 2023 election
+
 ### CoCo3 (Elected Sep 2021)
 
 - Kelle Cruz - Three year term