Fix whitespace in the README

README.md

@@ -86,7 +86,7 @@ AllCops:
   Exclude:
     - spec/dummy/**/*
     - vendor/**/*
-``` 
+```
 
 You can now run RuboCop with:
 
@@ -145,13 +145,13 @@ task default: 'extension:specs'
 
 ## Development
 
-After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run 
-the tests. You can also run `bin/console` for an interactive prompt that will allow you to 
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run
+the tests. You can also run `bin/console` for an interactive prompt that will allow you to
 experiment.
 
-To install this gem onto your local machine, run `bundle exec rake install`. To release a new 
-version, update the version number in `version.rb`, and then run `bundle exec rake release`, which 
-will create a git tag for the version, push git commits and tags, and push the `.gem` file to 
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new
+version, update the version number in `version.rb`, and then run `bundle exec rake release`, which
+will create a git tag for the version, push git commits and tags, and push the `.gem` file to
 [rubygems.org](https://rubygems.org).
 
 ## Contributing