CONTRIBUTING.md in jazzy-0.7.3 vs CONTRIBUTING.md in jazzy-0.7.4

@@ -33,11 +33,11 @@
 ```shell
 git checkout master
 git pull
 git checkout -
 git rebase master
-bundle install
+rake bootstrap
 bundle exec rake rebuild_integration_fixtures
 cd spec/integration_specs
 git checkout -b $jazzy_branch_name
 git commit -a -m "update for $jazzy_branch_name"
 git push
@@ -46,9 +46,11 @@
 git push
 ```
 
 You'll need push access to the integration specs repo to do this. You can
 request access from one of the maintainers when filing your PR.
+
+You must have Xcode 8.2 installed to build the integration specs.
 
 ## Making changes to SourceKitten
 
 When changes are landed in the https://github.com/jpsim/SourceKitten repo the
 SourceKitten framework located in jazzy must be updated.