Changing Permalinks
Question:
How can I change my page URL’s to look more like a normal website like: http://example.com/about-us”
Rather then having it look like: http://example.com/?p=232
Answer:
1) Log into WordPress
2) Click on “Settings” -> “Permalinks”
3) Select from one of the presets or type the following into the “Custom Structure” field: /%postname%/
The image below shows another variation of a Permalink – it shows Year & Postname:

For more details visit the Official WordPress Codex post on Permalinks
Note: there are some performance arguments on the Internet against using just /%postname%/. However most of those performance arguments are based on sites with several hundred or thousands of pages. Google for it if you want, but it will likely not pertain to your site.
