Update project-generation-options.rst
Change small typo. "ones" should be "once".
@@ -19,7 +19,7 @@ email [daniel-roy-greenfeld@example.com]:
The email address you want to identify yourself in the project.
domain_name [example.com]
- The domain name you plan to use for your project ones it goes live.
+ The domain name you plan to use for your project once it goes live.
Note that it can be safely changed later on whenever you need to.
version [0.1.0]
