Link to meta-programming guide

Author: josevalim

getting-started/optional-syntax.markdown

@@ -73,7 +73,7 @@ That's it! Those four rules outline the optional syntax available in Elixir.
 
 To understand why these rules matter, we can briefly compare Elixir with many other programming languages. Most programming languages have several keywords for defining methods, functions, conditionals, loops, and so forth. Each of those keywords have their own syntax rules attached to them.
 
-However, in Elixir, the syntax for defining modules, functions, conditionals, and so on all use the syntax rules above! None of these language features require special "keywords" in the language. At the end, learning Elixir requires knowing less syntax because the language is built on fewer rules. The other benefit is that developers can also extend the language in a way that is consistent with the language itself, since the constructs for designing and extending the language are the same!
+However, in Elixir, none of these language features require special "keywords", instead they all build from this small set of rules. The other benefit is that developers can also extend the language in a way that is consistent with the language itself, since the constructs for designing and extending the language are the same. We further explore this topic in [the Meta-programming in Elixir guide](/getting-started/meta/quote-and-unquote.html).
 
 At the end of the day, those rules are what enables us to write: