diff --git a/p2/README.md b/p2/README.md
index 314cc81..71f770e 100644
--- a/p2/README.md
+++ b/p2/README.md
@@ -19,3 +19,11 @@ to visualise the computed data:
 ```sh
 python visualise.py
 ```
+
+alternatively, from current folder you could do both of the above in a single
+step:
+```diff
+# compute stuff and visualise.
+-./p2 -datafile=./data/m.csv
++./p2 -datafile=./data/m.csv -vis
+```