doc: write about use of ASAN
@@ -41,5 +41,6 @@ http://wiki.debian.org/Hardening
## Memory Leaks
-We use Valgrind (`--tool=memcheck`) to make sure that Elektra
-does not suffer memory leaks and incorrect memory handling.
+We use Valgrind (`--tool=memcheck`) and ASAN (clang+gcc) to
+make sure that Elektra does not suffer memory leaks and
+incorrect memory handling.
