Increment API Blueprint version to 1A9

Author: LinusU

API Blueprint Specification.md

@@ -1,12 +1,12 @@
 ---
 
 Author: z@apiary.io
-Version: 1A8
+Version: 1A9
 
 ---
 
 # API Blueprint
-#### Format 1A revision 8
+#### Format 1A revision 9
 
 ## [I. API Blueprint Language](#def-api-blueprint-language)
 + [Introduction](#def-introduction)

README.md

@@ -20,7 +20,7 @@ API Blueprint, its parser, and most of its tools are completely open sourced so
 
 ## Format support
 
-* Current format: [1A8](https://github.com/apiaryio/api-blueprint/releases/tag/format-1A8)
+* Current format: [1A9](https://github.com/apiaryio/api-blueprint/releases/tag/format-1A9)
 * Format supported by Apiary: [1A8](https://github.com/apiaryio/api-blueprint/releases/tag/format-1A8)
 
 ## Getting started with API Blueprint