gemspec.yml in ffi-wiring_pi-0.5.0 vs gemspec.yml in ffi-wiring_pi-0.6.0

- old
+ new

@@ -1,7 +1,7 @@
 name: ffi-wiring_pi
-version: 0.5.0
+version: 0.6.0
 summary: FFI bindings for wiringPi
 description: Ruby FFI bindings for the wiringPi library.
 license: MIT
 authors: Mark Huk
 email: mark.guk.e@gmail.com
@@ -13,7 +13,8 @@
 dependencies:
   ffi: ~> 1.0
 
 development_dependencies:
   rspec: ~> 3.8
+  rake: ~> 12.3.2
   yard: ~> 0.9.1
   bundler: ~> 2.0