TBR: Add dollar sign to export command.

Change-Id: Id3ea52418ab2beff3893431de0aea5af2687e86c
diff --git a/capsule/README.md b/capsule/README.md
index 58836eb..cda6d82 100644
--- a/capsule/README.md
+++ b/capsule/README.md
@@ -88,7 +88,7 @@
 
 After this, you will need to add the AndroidViewClient to your PYTHONPATH:
 
-``export PYTHONPATH=$PYTHONPATH:$JIRI_ROOT/release/projects/luma_third_party/AndroidViewClient/``
+``$ export PYTHONPATH=$PYTHONPATH:$JIRI_ROOT/release/projects/luma_third_party/AndroidViewClient/``
 
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