Fixing typo in cd instruction

Signed-off-by: Amy Lindburg <amy.lindburg@docker.com>

docs/sources/project/test-and-docs.md

@@ -249,7 +249,7 @@ can browse the docs.
 
 1. In a terminal, change to the root of your `docker-fork` repository.
 
-        $ cd ~/repos/dry-run-test
+        $ cd ~/repos/docker-fork
 
 2. Make sure you are in your feature branch.