How to edit an existing article page
With the exception of a handful of pages, you can edit just about any article located within this wiki project simply by clicking the edit tab at the top of each page. Once clicked, an editing box will appear with the existing contents of the page formatted in text and wiki markup code.
You're more than welcome to modify the page however you wish, but anything you add must be in compliance with our Creative Commons Attribution-ShareAlike copyright license. It helps the rest of us if you adhere to our policies and procedures and Manual of Style. Don't let that stop you from digging in, though. It's more important that you add something rather than having you do it perfectly. Perfection isn't our goal here.
Previewing and Saving Pages
To see what your changes will look like before you save them, click the Show preview button. This won't save the page! Do a preview just before saving the page to ensure your information looks correct. If you're satisfied with the changes, click the Save changes button to save your work.
You can cancel edits by simply clicking the Cancel link, and of course, clicking Editing help returns you to the "how to" guide menu.
Beneath the editing box is a short field labeled Summary. This can be used for adding a short description about what changes you've done to a page (i.e., "added new frequencies", "correct outdated information", and so on). Making use of the summary box helps others who are looking at the recent changes or page history logs quickly see what changes you made.
If you've edited a page, but it doesn't seem to have changed, you should take a look at the recent changes log. Someone probably did a rollback or revert of your changes and forgot to note a reason why.
Using the check boxes
If you're logged in with a registered user account, there will be a check box labeled This is a minor edit just below the editing area and summary field. The idea behind this is that people reviewing the page history or recent changes logs can filter out the unimportant changes, and instead focus on the more recent ones. It's ultimately up to you to decide what qualifies as "minor" and what doesn't. Usually spelling, grammar, punctuation, and formatting changes are considered "minor" to most people. Changes to the "meat-n-potatoes" (real information) within an article are typically not.
The Watch this page check box adds an article page to your watchlist. Any changes made to the article (or the article's discussion page) by you or anyone else will appear in your watchlist. This gives you the ability to "keep tabs" on any changes.
The default settings, whether or not those check boxes are marked or not, can be adjusted in your user preferences.
Creating new pages
Restoring previous versions of an article page
If another contributor changes or removes content from an article, the older versions of the page are still available from the page history log. To view an article's history, click on the View history tab at the top of any page, then click on the date for the revision you're interested in. To revert the article back to a previous version, simply click the edit tab while viewing the older version, then re-save the new one. Alternatively, if you want to revert a single edit, click the undo link from an article's history next to the edit that's being reverted.