DOC/MINOR: fix typo in management document

s/Not/Note.

(cherry picked from commit c5b5e7b475a080efe38400013ea34f2e2439816c)
Signed-off-by: Willy Tarreau <w@1wt.eu>
diff --git a/doc/management.txt b/doc/management.txt
index 1bbfc0c..7f66230 100644
--- a/doc/management.txt
+++ b/doc/management.txt
@@ -487,7 +487,7 @@
 for example a port is shared with another daemon), then the new process sends a
 SIGTTIN signal to the old processes to instruct them to resume operations just
 as if nothing happened. The old processes will then restart listening to the
-ports and continue to accept connections. Not that this mechanism is system
+ports and continue to accept connections. Note that this mechanism is system
 dependent and some operating systems may not support it in multi-process mode.
 
 If the new process manages to bind correctly to all ports, then it sends either