README.md in spearly-sdk-ruby-0.10.0 vs README.md in spearly-sdk-ruby-0.11.0

- old
+ new

@@ -48,10 +48,10 @@
 ```
 
 ## Publish
 ### Build
 ```sh
-rake build
+bundle exec rake build
 ```
 
 ### Push to RubyGems
 ```sh
 new_version=$(ruby -e "require './lib/spearly/version'; puts Spearly::VERSION")