tweak to wording re: syntax highlighting

Author: hjwp

en/code_editor/README.md

@@ -32,7 +32,7 @@ You might be wondering why we are installing this special code editor software,
 
 The first is that code needs to be **plain text**, and the problem with programs like Word and Textedit is that they don't actually produce plain text, they produce rich text (with fonts and formatting), using custom formats like rtf.
 
-The second reason is that code editors are specialised in editing code, so they can provide helpful features, like syntax highlighting, or automatically closing quotes for you.
+The second reason is that code editors are specialised in editing code, so they can provide helpful features, like highlighting code with colour according to its meaning, or automatically closing quotes for you.
 
 We'll see all this in action later.  Soon, you'll come to think of your trusty old code editor as one of your favourite tools :)