fix sponsor button link

README.md

@@ -102,7 +102,7 @@ These commands expand the filesystem, enable SPI and set up the correct timezone
 ## Installing Inkycal
 ⚠️ Please note that although the developers try to keep the installation as simple as possible, the full installation can sometimes take hours on the Raspberry Pi Zero W and is not guaranteed to go smoothly each time. This is because installing dependencies on the zero w takes a long time and is prone to copy-paste-, permission- and configuration errors.
 
-ℹ️ **Looking for a shortcut to safe a few hours?** We know about this problem and have spent a signifcant amount of time to prepare a pre-configured image with the latest version of Inkycal for the Raspberry Pi Zero. It comes with the latest version of Inkycal, is fully tested and uses the Raspberry Pi OS Lite as it's base image. You only need to copy your settings.json file, we already took care of the rest, including auto-start at boot, enabling spi and installing all dependencies in advance. Pretty neat right? Check the [sponsor button]() at the very top of the repo to get access to Inkycal-OS-Lite. This will help keep this project growing and cover the ongoing expenses too! Win-win for everyone! 🎊
+ℹ️ **Looking for a shortcut to safe a few hours?** We know about this problem and have spent a signifcant amount of time to prepare a pre-configured image with the latest version of Inkycal for the Raspberry Pi Zero. It comes with the latest version of Inkycal, is fully tested and uses the Raspberry Pi OS Lite as it's base image. You only need to copy your settings.json file, we already took care of the rest, including auto-start at boot, enabling spi and installing all dependencies in advance. Pretty neat right? Check the [sponsor button](https://github.com/sponsors/aceisace) at the very top of the repo to get access to Inkycal-OS-Lite. This will help keep this project growing and cover the ongoing expenses too! Win-win for everyone! 🎊
 
 
 ### Manual installation