changed:
-  Let's suppose something trivial, like you notice a typo or grammatical error. Generally, in the wiki world everyone is more than welcome to click on the edit tab and fix such a problem. Clicking on edit gives a big text box labeled *Body text* which can be edited right in your browser. Be sure to click on the **save** button (a few inches) below the edit box before navigating away. There is a **preview** button, which may be useful or reassuring. But **don't forget to save**.
  Let's suppose something trivial, like you notice a typo or grammatical error. Generally, in the wiki world everyone is more than welcome to click on the edit tab and fix such a problem. Clicking on edit gives a big text box labeled *Body text* which can be edited right in your browser. Be sure to click on the **save** button (a few inches) below the edit box before navigating away. There is a **preview** button, which may be useful or reassuring. But **remember to save**.

changed:
-  For more than that, see the tips, below, and don't forget to go play around on the SandBox page. Plain text in paragraphs separated by one blank line is a good start.
  For more than that, see the tips, below, and remember to go play around on the SandBox page. Plain text in paragraphs separated by one blank line is a good start.

changed:
- * Don't use double-dashes; that is actually interpreted as a markup recipe for *definition list*
 * Avoid using double-dashes; that is actually interpreted as a markup recipe for *definition list*

changed:
- * It's too easy to navigate away from an unfinished wiki editing session, so it's worth emphasizing: **_don't forget to save_**!
 * It's too easy to navigate away from an unfinished wiki editing session, so it's worth emphasizing: **_remember to save_**!