scripts: add unnecessary descriptions

config/scripts/.local/scripts/mpv-hdr

@@ -1,5 +1,8 @@
 #!/bin/sh
 
+# Description:
+#   Launch mpv with HDR support enabled
+
 export ENABLE_HDR_WSI=1
 
 mpv --vo=gpu-next --target-colorspace-hint --gpu-api=vulkan --gpu-context=waylandvk "$@"