Beef up mentions of the need for Invoke, when using Match exec, in the docs

1 files changed, 9 insertions, 5 deletions

diff --git a/sites/docs/api/config.rst b/sites/docs/api/config.rst
index 8ee0b444..1c3af085 100644
--- a/sites/docs/api/config.rst
+++ b/sites/docs/api/config.rst
@@ -61,11 +61,15 @@ Paramiko releases) are included. A keyword by itself means no known departures.
 
 - ``Host``
 - ``HostName``: used in ``%h`` :ref:`token expansion <TOKENS>`
-- ``Match``: fully supported, with the usual caveat that connection-time
-  information is not present during config lookup, and thus cannot be used to
-  determine matching. This primarily impacts ``Match user``, which can match
-  against loaded ``User`` values but has no knowledge about connection-time
-  usernames.
+- ``Match``: fully supported, with the following caveats:
+
+    - You must have the optional dependency Invoke installed; see :ref:`the
+      installation docs <paramiko-itself>` (in brief: install
+      ``paramiko[invoke]`` or ``paramiko[everything]``).
+    - As usual, connection-time information is not present during config
+      lookup, and thus cannot be used to determine matching. This primarily
+      impacts ``Match user``, which can match against loaded ``User`` values
+      but has no knowledge about connection-time usernames.
 
     .. versionadded:: 2.7