diff --git a/d1/input.txt b/2021/day-1/input.txt
similarity index 100%
rename from d1/input.txt
rename to 2021/day-1/input.txt
diff --git a/d1/part1.ts b/2021/day-1/part-1.ts
similarity index 100%
rename from d1/part1.ts
rename to 2021/day-1/part-1.ts
diff --git a/d1/part2.ts b/2021/day-1/part-2.ts
similarity index 100%
rename from d1/part2.ts
rename to 2021/day-1/part-2.ts
diff --git a/d2/input.txt b/2021/day-2/input.txt
similarity index 100%
rename from d2/input.txt
rename to 2021/day-2/input.txt
diff --git a/d2/part1.ts b/2021/day-2/part-1.ts
similarity index 100%
rename from d2/part1.ts
rename to 2021/day-2/part-1.ts
diff --git a/d2/part2.ts b/2021/day-2/part-2.ts
similarity index 100%
rename from d2/part2.ts
rename to 2021/day-2/part-2.ts
diff --git a/d3/ex.txt b/2021/day-3/ex.txt
similarity index 100%
rename from d3/ex.txt
rename to 2021/day-3/ex.txt
diff --git a/d3/input.txt b/2021/day-3/input.txt
similarity index 100%
rename from d3/input.txt
rename to 2021/day-3/input.txt
diff --git a/d3/part1.ts b/2021/day-3/part-1.ts
similarity index 100%
rename from d3/part1.ts
rename to 2021/day-3/part-1.ts
diff --git a/d3/part2.ts b/2021/day-3/part-2.ts
similarity index 100%
rename from d3/part2.ts
rename to 2021/day-3/part-2.ts
diff --git a/d4/ex.txt b/2021/day-4/ex.txt
similarity index 100%
rename from d4/ex.txt
rename to 2021/day-4/ex.txt
diff --git a/d4/input.txt b/2021/day-4/input.txt
similarity index 100%
rename from d4/input.txt
rename to 2021/day-4/input.txt
diff --git a/d4/part1.ts b/2021/day-4/part-1.ts
similarity index 100%
rename from d4/part1.ts
rename to 2021/day-4/part-1.ts
diff --git a/d4/part2.ts b/2021/day-4/part-2.ts
similarity index 100%
rename from d4/part2.ts
rename to 2021/day-4/part-2.ts
diff --git a/d4/utils.ts b/2021/day-4/utils.ts
similarity index 100%
rename from d4/utils.ts
rename to 2021/day-4/utils.ts
diff --git a/d5/ex.txt b/2021/day-5/ex.txt
similarity index 100%
rename from d5/ex.txt
rename to 2021/day-5/ex.txt
diff --git a/d5/input.txt b/2021/day-5/input.txt
similarity index 100%
rename from d5/input.txt
rename to 2021/day-5/input.txt
diff --git a/d5/part1.ts b/2021/day-5/part-1.ts
similarity index 100%
rename from d5/part1.ts
rename to 2021/day-5/part-1.ts
diff --git a/d5/part2.ts b/2021/day-5/part-2.ts
similarity index 100%
rename from d5/part2.ts
rename to 2021/day-5/part-2.ts
diff --git a/d6/ex.txt b/2021/day-6/ex.txt
similarity index 100%
rename from d6/ex.txt
rename to 2021/day-6/ex.txt
diff --git a/d6/input.txt b/2021/day-6/input.txt
similarity index 100%
rename from d6/input.txt
rename to 2021/day-6/input.txt
diff --git a/d6/part1.ts b/2021/day-6/part-1.ts
similarity index 100%
rename from d6/part1.ts
rename to 2021/day-6/part-1.ts
diff --git a/d6/part2.ts b/2021/day-6/part-2.ts
similarity index 100%
rename from d6/part2.ts
rename to 2021/day-6/part-2.ts
diff --git a/d7/ex.txt b/2021/day-7/ex.txt
similarity index 100%
rename from d7/ex.txt
rename to 2021/day-7/ex.txt
diff --git a/d7/input.txt b/2021/day-7/input.txt
similarity index 100%
rename from d7/input.txt
rename to 2021/day-7/input.txt
diff --git a/d7/part1.ts b/2021/day-7/part-1.ts
similarity index 100%
rename from d7/part1.ts
rename to 2021/day-7/part-1.ts
diff --git a/d7/part2.ts b/2021/day-7/part-2.ts
similarity index 100%
rename from d7/part2.ts
rename to 2021/day-7/part-2.ts
diff --git a/README.md b/README.md
index c5230a7..d5d2014 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,3 @@
-# 2021 Advent of Code
+# [Advent of Code](https://adventofcode.com)
 
-https://adventofcode.com/2021
\ No newline at end of file
+Everything is done in pure Typescript without any external libs and trying not to use internet to solve the challenges.
\ No newline at end of file