Merge pull request #1582 from pothitos/patch-1

Minor beautification

mongo/content.md

@@ -16,7 +16,7 @@ First developed by the software company 10gen (now MongoDB Inc.) in October 2007
 $ docker run --name some-%%REPO%% -d %%IMAGE%%:tag
 ```
 
-... where `some-%%REPO%%` is the name you want to assign to your container and tag is the tag specifying the MongoDB version you want. See the list above for relevant tags.
+... where `some-%%REPO%%` is the name you want to assign to your container and `tag` is the tag specifying the MongoDB version you want. See the list above for relevant tags.
 
 ## Connect to MongoDB from another Docker container