Reduce flathub badge size

README.md

@@ -28,7 +28,7 @@ gImageReader is a simple Gtk/Qt front-end to [tesseract-ocr](https://github.com/
 - ![OpenSUSE](https://raw.githubusercontent.com/manisandro/gImageReader/gh-pages/icons/opensuse.png) **OpenSUSE**: Available from [OpenSUSE Build Service](https://build.opensuse.org/project/show/home:sandromani)
 - ![ArchLinux](https://raw.githubusercontent.com/manisandro/gImageReader/gh-pages/icons/arch.png) **ArchLinux**: Available from the extra repositories: [gimagereader-gtk](https://archlinux.org/packages/extra/x86_64/gimagereader-gtk) and [gimagereader-qt](https://archlinux.org/packages/extra/x86_64/gimagereader-qt)
 - <a href='https://flathub.org/apps/io.github.manisandro.gImageReader'>
-    <img width='240' alt='Download on Flathub' src='https://flathub.org/api/badge?locale=en'/>
+    <img width='128' alt='Download on Flathub' src='https://flathub.org/api/badge?locale=en'/>
   </a>
 
 ## Compilation