updating 'pod-test' documentation to specify which profile is supported

Change-Id: I6af2272c99f984b3728ca34b4d3ddd118f17eac7
diff --git a/docs/install_virtual.md b/docs/install_virtual.md
index a6d4475..16505d4 100644
--- a/docs/install_virtual.md
+++ b/docs/install_virtual.md
@@ -103,6 +103,7 @@
 cd ~/cord/build
 make pod-test
 ```
+> NOTE: This test can only be conducted on the `rcord-virtual` profile. Other profile tests are still WIP. 
 
 The output of the tests will be displayed, as well as stored in
 `~/cord/build/logs/<iso8601_datetime>_pod-test`.