1 files changed, 20 insertions, 0 deletions

diff --git a/readme.txt b/readme.txt
new file mode 100644
index 0000000..49ff08a
--- /dev/null
+++ b/readme.txt
@@ -0,0 +1,20 @@
+advent of code
+--------------
+
+some solutions to aoc 2020, written in haskell. 
+
+
+build
+-----
+
+each day's solution is a separate cabal executable:
+
+
+        cabal run DayXX
+
+
+or with nix:
+
+
+        nix-build
+        ./result/bin/DayXX