Merge pull request #416 from rvedotrc/correct-terminology

Use correct (and also less misleading) terminology

Author: KimberleyCook

html/lesson2/tutorial.md

@@ -48,7 +48,7 @@ _**CSS** works in conjunction with **HTML**_
 
 You can change the color, position, dimensions and presentation of different elements
 
-### Anatomy of a CSS element
+### Anatomy of a CSS rule
 
 ```css
 body {

html/lesson5/tutorial.md

@@ -33,7 +33,7 @@ Set her name as the title that will be displayed on the browser's bar.
 <title>Anita Borg</title>
 ```
 
-Also, set a title for your page
+Also, set a heading for your page
 
 ```html
 <h1>Anita Borg</h1>