docs correct HD1 source format

Commit
8aabcb092ccf8d47c4ac5cf095429930bcea324b
Author
Marius Peter <dev@marius-peter.com>
Author date
Committer
Marius Peter <dev@marius-peter.com>
Committer date
.kiro/steering/domain.md
index 54e1a9f7..67c5bea9 100644..100644
@@ -2,7 +2,7 @@
2 2
3 3 hito is a Heavy Duty training tracker.
4 4
5 Removed: - The source of doctrine is `doc/hd1.md` (HD1). `doc/hd1.docx` is the original
5 Added: - The source of doctrine is `doc/hd1.md` (HD1). `doc/hd1.pdf` is the original
6 6 file. Justify each domain decision against HD1.
7 7 - HD1 is copyrighted local reference material. Git ignores `doc/`. Never
8 8 commit it.