[PATCH openbmc] test: modify readme

[OpenBMC Patches]

From: Chris Smart <distroguy at gmail.com>

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c4306b0..7557b22 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,6 @@ somewhere to hold the build.  This directory will get big.
 To start a build:
 
     cd <builddir>
-    . <repodir>/openbmc-env
+    source <repodir>/openbmc-env
     bitbake obmc-phosphor-image
 
-- 
2.6.3