Once all changes are made to a page and saved, click on the green Publish button at the top of the page. You will see a dialogue box that will allow you to run one last spelling or link check on your page if you hadn't already done so.
If you have uploaded a new image or document that hasn't been published yet, you will also see next to Publish Options a checkbox that says Include Unpublished Dependencies. Leave this checked. This will make sure that any images or documents being used on the page are also published.
