Remove "Syntax" from table of content

This section has been removed in 005c916.

Author: dorian-marchal

README.md

@@ -8,7 +8,6 @@
  * [Whitespace](#whitespace)
  * [Indentation](#indentation)
  * [Parentheses](#parentheses)
- * [Syntax](#syntax)
 * __[The Guide](#the-guide)__
  * [Expressions](#expressions)
  * [Naming](#naming)