vim: use <Space> more consistently in search view

In search view <Space> will show the thead, but folding messages that
don't match the current search expression.  Conversly, <Enter> always
shows all messages in the thread.

1 files changed, 2 insertions, 1 deletions

diff --git a/vim/README b/vim/README
index 299c7f89..8cd3b1a2 100644
--- a/vim/README
+++ b/vim/README
@@ -42,7 +42,8 @@ Buffer types:
         You are presented with the search results when you run :NotMuch.
 
         Keybindings:
-            <Enter> - show the selected message
+            <Space> - show the selected thread colapsing unmatched items
+            <Enter> - show the entire selected thread
             a       - archive message (remove inbox tag)
             f       - filter the current search terms
             o       - toggle search screen order