added readme

Cakem1x · Cakem1x · commit 9fc79e84c2de · 2019-12-02T22:00:42.000+01:00
diff --git a/README.md b/README.md
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+Contains my code for the advent of code 2019.
+This obviously means that this repo contains spoilers!
+
+Advent of Code: https://adventofcode.com/
