Adding simple README

README.md

@@ -0,0 +1,10 @@
+# LeetCode Solutions
+
+This repo holds all the code of the solution of the problems from [LeetCode](leetcode.com)
+
+# Structure
+
+Every directory in the root of the repo denotes languages that the solutions
+inside used.
+
+The source code file name is always `<problem_number>.<language_ext>`.