docs: fix typo

Author: loqusion

shaders/README.md

@@ -3,9 +3,9 @@
 The files in this directory are only compatible with v4.0.0! They are **not**
 compatible with the latest stable release. Additionally, manually copying the
 files in this directory should not be necessary. If activating a shader with
-`hyprshade on` does not work, feel free to [open an bug report].
+`hyprshade on` does not work, feel free to [open a bug report].
 
-[open an bug report]: https://github.com/loqusion/hyprshade/issues/new?template=bug_report.md
+[open a bug report]: https://github.com/loqusion/hyprshade/issues/new?template=bug_report.md
 
 If you would like to use the latest features of Hyprshade, the only officially
 supported method is to install the [hyprshade-git] package on the AUR.