README.md: add --python=python3 to virtualenv line

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>

diff --git a/README.md b/README.md
index 58f78d138a1677485147d6d65e4ac4b0bf9e6db1..64697c9ec5648a46fd8ea416eb623d3177b79da1 100644 (file)
--- a/README.md
+++ b/README.md
@@ -154,7 +154,7 @@ install the appropriate version, and then run the tests.
 
 In the barectf source tree root, do:
 
-    virtualenv virt
+    virtualenv --python=python3 virt
     . ./virt/bin/activate
     rehash # if using zsh
     ./setup.py install