Edit readme

Nan1t · Nan1t · commit a5b9e3510dbe · 2024-06-14T13:23:20.000+03:00
diff --git a/README.md b/README.md
@@ -35,7 +35,8 @@ Symbol `X` means all minor versions.
 - [x] 1.17.X
 - [x] 1.18.X
 - [x] 1.19.X
-- [x] 1.20-1.20.6
+- [x] 1.20.X
+- [x] 1.21
 
 The server **doesn't** support snapshots.
 
