diff --git a/README.md b/README.md
index 6bb8968..08f1537 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,6 @@
 # ZariskiPair12Lines
 Sagemath code for the computation of the truncated Alexander invariant of Galois-conjugated line arrangements which allow to prove that their fundamental groups are not isomorphic.
+
+This repository contais the Sagemath code for the problem stated in the above lines. It contains two files:
+	CodeLines.sws: Notebook file with the code
+	CodeLines.txt: text file to be used in a personal installation of Sagemath or in CloudSagemath