Clean up README

README.md

@@ -12,7 +12,7 @@ I wouldn't recommend adding this to your Gemfile long-term. Rather, try out the
 
 Learn about your Gemfile and see what needs updating.
 
-```
+```bash
 # Show all out-of-date gems
 bundle_report outdated
 # Show five oldest, out-of-date gems
@@ -44,7 +44,7 @@ We don't use MiniTest, so there isn't a prebuilt config for it but I suspect it'
 
 Once you have that, you can start using deprecation tracking in your tests:
 
-```
+```bash
 # Run your tests and save the deprecations to the shitlist
 DEPRECATION_TRACKER=save rspec
 # Run your tests and raise an error when the deprecations change
@@ -55,7 +55,7 @@ DEPRECATION_TRACKER=compare rspec
 
 Once you have stored your deprecations, you can use `deprecations` to display common warnings, run specs, or update the shitlist file.
 
-```
+```bash
 deprecations info
 deprecations info --pattern "ActiveRecord::Base"
 deprecations run
@@ -64,7 +64,6 @@ deprecations --help # For more options and examples
 
 Right now, the path to the shitlist is hardcoded so make sure you store yours at `spec/support/deprecations.shitlist.json`.
 
-
 ### Dual-boot Rails next
 
 This command helps you dual-boot your application.
@@ -75,6 +74,7 @@ vim Gemfile         # Tweak your dependencies conditionally using `next?`
 next bundle install # Install new gems
 next rails s        # Start server using Gemfile.next
 ```
+
 ## Installation
 
 Add this line to your application's Gemfile:
@@ -91,24 +91,6 @@ Or install it yourself as:
 
     $ gem install ten_years_rails_conf_2018
 
-## Usage
-
-TODO: Write usage instructions here
-
-## 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 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 [rubygems.org](https://rubygems.org).
-
-## Contributing
-
-Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/ten_years_rails_conf_2018. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
-
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
-
-## Code of Conduct
-
-Everyone interacting in the TenYearsRailsConf2018 project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/ten_years_rails_conf_2018/blob/master/CODE_OF_CONDUCT.md).