add kernel version 6.6.21-1-lts as successfully tested

stefanpartheym · stefanpartheym · commit 8aed83fc36be · 2024-03-12T18:12:23.000+01:00
diff --git a/README.md b/README.md
@@ -13,6 +13,7 @@ All PKGBUILDs in this repository are taken from [this comment](https://bbs.archl
 LTS kernels:
 
 - `6.6.18-1-lts`
+- `6.6.21-1-lts`
 
 Stable kernels:
 
