Fix links according to make linkcheks
Change-Id: I0a4d2008046fcae4ad12627bf331b3220e94545a
diff --git a/README.md b/README.md
index 95c25dc..fd9449e 100644
--- a/README.md
+++ b/README.md
@@ -109,7 +109,7 @@
```
If you are running the tests in another environment, you can run `make sanity`
with the arguments appropriate for your environment. Look at
-[variables.robot](variables/variables.robot) for a list of variables that
+[variables.robot](https://github.com/opencord/voltha-system-tests/blob/master/variables/variables.robot) for a list of variables that
you may need to override.
# Running Tests on Physical POD