README.md in goodcheck-1.4.1 vs README.md in goodcheck-1.5.0

@@ -1,5 +1,7 @@
+![Goodcheck logo](logo/GoodCheck%20Horizontal.png)
+
 # Goodcheck - Regexp based customizable linter
 
 Are you reviewing a pull request if the change contains deprecated API calls?
 Do you want to post a comment to ask the developer if a method call satisfies some condition to use that without causing an issue?
 What if a misspelling like `Github` for `GitHub` can be found automatically?
@@ -172,10 +174,23 @@
 - A string which represents an relative file path from config file, or
 - A http/https URL which represents the location of rules
 
 The rules file is a YAML file with array of rules.
 
+## Excluding files
+
+`goodcheck.yml` can have optional `exclude` attribute.
+
+```yaml
+rules: []
+exclude:
+  - node_modules
+  - vendor
+```
+
+Value of `exclude` can be a string or an array of strings representing the glob pattern for excluded files.
+
 ## Commands
 
 ### `goodcheck init [options]`
 
 The `init` command generates an example of configuration file.
@@ -203,11 +218,11 @@
 * `-v`, `--verbose` to be verbose.
 * `--debug` to print all debug messages.
 * `--force` to ignore downloaded caches
 
 `goodcheck check` exits with:
- 
+
 * `0` when it does not find any matching text fragment
 * `2` when it finds some matching text
 * `1` when it finds some error
 
 You can check its exit status to identify if the tool find some pattern or not.
@@ -235,27 +250,26 @@
 Downloaded rules are cached in `cache` directory in *goodcheck home directory*.
 The *goodcheck home directory* is `~/.goodcheck`, but you can customize the location with `GOODCHECK_HOME` environment variable.
 
 The cache expires in 3 minutes.
 
-## Docker image
+## Docker Images
 
-You can use a docker image to use Goodcheck.
+You can use [Docker images](https://hub.docker.com/r/sider/goodcheck/) to use Goodcheck.
+For example:
 
 ```bash
-$ git clone https://github.com/sideci/goodcheck
-$ cd goodcheck
-$ docker build -t goodcheck:latest .
+$ docker pull sider/goodcheck
 
 $ cd /path/to/your/project
-$ docker run -it --rm -v "$(pwd):/work" goodcheck:latest goodcheck check
+$ docker run -it --rm -v "$(pwd):/work" sider/goodcheck goodcheck check
 ```
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` 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/sideci/goodcheck.
+Bug reports and pull requests are welcome on [GitHub](https://github.com/sider/goodcheck).