vcr.rb in slack-ruby-client-0.7.1

- old
+ new

@@ -1,5 +1,6 @@
 require 'vcr'
+require 'webmock/rspec'
 
 VCR.configure do |config|
   config.cassette_library_dir = 'spec/fixtures/slack'
   config.hook_into :webmock
   config.default_cassette_options = { record: :new_episodes }