Fix mismatched quote and pluralization

diff --git a/DOCKER.md b/DOCKER.md
index 2350684593143643d670ce6455622d3ced9cdb50..0c5bee35c07d5055d1d1a0939ca15090ee361255 100644 (file)
--- a/DOCKER.md
+++ b/DOCKER.md
@@ -52,7 +52,7 @@ This will launch one Docker container for each 'service' specified in `docker-co
 
 ### Migrations
 
-While the `db' service is running, open another terminal windows and run:
+While the `db` service is running, open another terminal window and run:
 
     docker-compose run --rm web rake db:migrate