docs: acknowledge DCO for HAYSTACK_PROGRESS_BARS PR

luojiyin1987 · luojiyin1987 · commit d7f3645d6486 · 2026-01-15T17:54:47.000+08:00
Signed-off-by: luojiyin &lt;luojiyin@hotmail.com&gt;
diff --git a/DCO_ACKNOWLEDGEMENT.txt b/DCO_ACKNOWLEDGEMENT.txt
@@ -0,0 +1,8 @@
+# Developer Certificate of Origin
+
+By contributing to this project, I certify that:
+(a) The contribution was created in whole or in part by me and I have the right to submit it.
+(b) The contribution is based upon previous work covered by an appropriate open source license.
+(c) I understand and agree that this project and the contribution are public.
+
+Signed-off-by: luojiyin <luojiyin@hotmail.com>
