t6120: test for describe with a bare repository

diff --git a/RelNotes b/RelNotes
index 5fcc4ef74770e8587a1469fff5e3f5610dabf0e1..392b0b3115c633b169cb003430d7f2ac373bf4b7 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/1.7.6.txt
\ No newline at end of file
+Documentation/RelNotes/2.18.1.txt
\ No newline at end of file