add web link to documentation

414587c2 · Maxime Folschette · cd39c5d7 · 414587c2
Commit 414587c2 authored Mar 03, 2021 by Maxime Folschette
--- a/README.txt
+++ b/README.txt
@@ -6,6 +6,7 @@ Documentation:
  M. Folschette,
  The Hoare-fol Tool,
  technical report, 2019.
+  https://hal.archives-ouvertes.fr/hal-02409801v1

 Principle:
  This implementation defines grammars and trees to represent properties on