README.md in resona-0.3.0 vs README.md in resona-0.3.1

@@ -31,9 +31,15 @@
 Usage: resona [options] gemfile
         --with grp,...               Specify groups to include
         --without grp,...            Specify groups to exclude
 ```
 
+Locally installed gems might not appear in the result. To prevent this from
+happening, it is recommended that you either use a [rbenv
+gemset](https://github.com/jf/rbenv-gemset), or use `GEM_HOME` and `GEM_PATH` to
+[hide your locally installed gems from
+resona](https://github.com/midchildan/mikutterbrew/blob/master/mikutterbrew).
+
 ## 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`.