Resolve "Sync Copyright in README.md and apps.py"

Closes #136 (closed)

aleksis/apps/chronos/apps.py

@@ -10,10 +10,12 @@ class ChronosConfig(AppConfig):
     }
     licence = "EUPL-1.2+"
     copyright_info = (
-        ([2018, 2019, 2020], "Jonathan Weth", "wethjo@katharineum.de"),
+        ([2018, 2019, 2020, 2021], "Jonathan Weth", "wethjo@katharineum.de"),
         ([2018, 2019], "Frank Poetzsch-Heffter", "p-h@katharineum.de"),
         ([2019, 2020], "Dominik George", "dominik.george@teckids.org"),
+        ([2019, 2021], "Hangzhi Yu", "yuha@katharineum.de"),
         ([2019], "Julian Leucker", "leuckeju@katharineum.de"),
         ([2019], "Tom Teichler", "tom.teichler@teckids.org"),
-        ([2019], "Hangzhi Yu", "yuha@katharineum.de"),
+        ([2021], "Lloyd Meins", "meinsll@katharineum.de"),
+        
     )