Merge pull request #61 from nicolasstucki/add-missing-link-to-sip-53

Add reference documentation link to SIP-53

Author: Kordyjan

content/quote-pattern-type-variable-syntax.md

@@ -27,6 +27,8 @@ Namely when using explicit type variable definitions.
 
 ### Background
 
+* [Reference Documentation](http://dotty.epfl.ch/docs/reference/metaprogramming/macros.html#type-variables)
+
 Quoted expressions support two ways of defining type variables: explicit and nested.
 
 ##### Explicit type variables