doc: add note about keymgr config option in migration

diff --git a/doc/migration.rst b/doc/migration.rst
index c00276bbc744c14fc7dba7654ef365556f2159fe..ce78b92d81b5db9e658e45cb9342a7818507855c 100644 (file)
--- a/doc/migration.rst
+++ b/doc/migration.rst
@@ -123,6 +123,10 @@ server configuration:
    $ ...
    $ keymgr example.com. list
 
+   .. NOTE::
+      If the server configuration file or database is not at the default location,
+      add a configuration parameter (-c or -C).
+
    .. NOTE::
       The server can be run under a dedicated user account, usually ``knot``.
       As the server requires read-write access to the KASP database, the