Post-install message, v0.9 (before gem install test)

README.md

@@ -153,7 +153,7 @@ Windows:
 
 ## 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.
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake` 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).
 

budik.gemspec

@@ -47,4 +47,8 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rubocop'
   spec.add_development_dependency 'coveralls'
   spec.add_development_dependency 'rdoc'
+
+  spec.post_install_message = 'Please make sure VLC/omxplayer and FFmpeg'\
+    "/Libav are installed.\nRun 'budik(.bat) config' to edit app's options"\
+    "as needed.\nRun 'budik(.bat) sources -e' to edit your media sources."
 end