Merge remote-tracking branch 'origin/main'

.gitmodules

@@ -1,6 +1,3 @@
-[submodule "aoc2020"]
-	path = aoc2020
-	url = https://github.com/metya/advents_of_code
 [submodule "aoc2021"]
 	path = aoc2021
 	url = https://github.com/metya/aoc2021

README.md

@@ -0,0 +1,2 @@
+# AoC
+ My Advents of Code in the different years