CONTRIBUTING.md in bugsnag-capistrano-2.0.0 vs CONTRIBUTING.md in bugsnag-capistrano-2.1.0

@@ -62,9 +62,10 @@
 * Commit and push your changes and tag
 * Create a new release on [the Github repository](https://github.com/bugsnag/bugsnag-capistrano)
 * Release to RubyGems
 
     ```
-    bundle exec rake release
+    gem build bugsnag-capistrano.gemspec
+    gem push bugsnag-capistrano-[version].gem
     ```
 
 * Update docs.bugsnag.com with any new content