update README

Author: Programator2

README.org

@@ -1,7 +1,7 @@
 * About
   Solutions in *Python*. I'm using the =advent-of-code-data= package to submit
   my answers.
-* Personal Stats
+* Personal Stats 2020
   | Day |     Time |  Rank | Score |     Time |  Rank | Score |
   |  25 |          |       |       |          |       |       |
   |  24 |          |       |       |          |       |       |
@@ -28,4 +28,6 @@
   |   3 | 00:11:52 |  2945 |     0 | 00:25:23 |  4018 |     0 |
   |   2 | 00:11:46 |  2696 |     0 | 00:15:04 |  2083 |     0 |
   |   1 | 00:07:22 |   631 |     0 | 00:08:34 |   548 |     0 |
-
+* License
+  All source code files aer under /GPL-3.0 License/. See =LICENSE= for more
+  information.