README.md: Add logos to the Arch Linux and Fedora badges

See:
https://shields.io/docs/logos
https://shields.io/badges/arch-linux-package
https://shields.io/badges/fedora-package-with-branch

#1467

Author: debarshiray

README.md

@@ -3,8 +3,8 @@
 [![Zuul](https://zuul-ci.org/gated.svg)](https://softwarefactory-project.io/zuul/t/local/builds?project=containers/toolbox)
 [![Daily Pipeline](https://softwarefactory-project.io/zuul/api/tenant/local/badge?project=containers/toolbox&pipeline=periodic)](https://softwarefactory-project.io/zuul/t/local/builds?project=containers%2Ftoolbox&pipeline=periodic)
 
-[![Arch Linux package](https://img.shields.io/archlinux/v/extra/x86_64/toolbox)](https://www.archlinux.org/packages/extra/x86_64/toolbox/)
-[![Fedora package](https://img.shields.io/fedora/v/toolbox/rawhide)](https://src.fedoraproject.org/rpms/toolbox/)
+[![Arch Linux package](https://img.shields.io/archlinux/v/extra/x86_64/toolbox?logo=archlinux)](https://www.archlinux.org/packages/extra/x86_64/toolbox/)
+[![Fedora package](https://img.shields.io/fedora/v/toolbox/rawhide?logo=fedora)](https://src.fedoraproject.org/rpms/toolbox/)
 
 [Toolbx](https://containertoolbx.org/) is a tool for Linux, which allows the
 use of interactive command line environments for development and