update badges

README.markdown

@@ -1,10 +1,10 @@
-[![Gem Version](https://img.shields.io/gem/v/image_optim.svg?style=flat)](https://rubygems.org/gems/image_optim)
+[![Gem Version](https://img.shields.io/gem/v/image_optim?logo=rubygems)](https://rubygems.org/gems/image_optim)
 [![Build Status](https://img.shields.io/github/workflow/status/toy/image_optim/check/master?logo=github)](https://github.com/toy/image_optim/actions/workflows/check.yml)
-[![AppVeyor Status](https://img.shields.io/appveyor/ci/toy/image-optim/master.svg?style=flat&label=windows)](https://ci.appveyor.com/project/toy/image-optim)
-[![Code Climate](https://img.shields.io/codeclimate/maintainability/toy/image_optim.svg?style=flat)](https://codeclimate.com/github/toy/image_optim)
-[![Code Climate Coverage](https://img.shields.io/codeclimate/c/toy/image_optim.svg?style=flat)](https://codeclimate.com/github/toy/image_optim)
-[![Depfu](https://badges.depfu.com/badges/221b4832fa96f613aa5401f7cb4030ac/overview.svg)](https://depfu.com/github/toy/image_optim)
-[![Inch CI](https://inch-ci.org/github/toy/image_optim.svg?branch=master&style=flat)](https://inch-ci.org/github/toy/image_optim)
+[![AppVeyor Status](https://img.shields.io/appveyor/build/toy/image-optim/master?label=windows&logo=appveyor)](https://ci.appveyor.com/project/toy/image-optim)
+[![Code Climate](https://img.shields.io/codeclimate/maintainability/toy/image_optim?logo=codeclimate)](https://codeclimate.com/github/toy/image_optim)
+[![Code Climate Coverage](https://img.shields.io/codeclimate/coverage/toy/image_optim?logo=codeclimate)](https://codeclimate.com/github/toy/image_optim)
+[![Depfu](https://img.shields.io/depfu/toy/image_optim)](https://depfu.com/github/toy/image_optim)
+[![Inch CI](https://inch-ci.org/github/toy/image_optim.svg?branch=master)](https://inch-ci.org/github/toy/image_optim)
 
 # image_optim