[PATCH 2/3] docs: explain the behavior of the new function `cycle`

---
 doc/nano.texi | 6 +++++-
 doc/nanorc.5  | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/doc/nano.texi b/doc/nano.texi
index 016f87fc..9ae60ed0 100644
--- a/doc/nano.texi
+++ b/doc/nano.texi
@@ -1643,7 +1643,11 @@ while keeping the cursor in the same text position, if possible.
 (This function is bound by default to @kbd{Alt+Down}.)
 
 @item center
-Scrolls the line with the cursor to the middle of the screen.
+Scrolls the line with the cursor to the middle of the viewport.
+
+@item cycle
+Scrolls the line with the cursor first to the middle of the viewport,
+then to the top, then to the bottom.
 
 @item prevword
 Moves the cursor to the beginning of the previous word.
diff --git a/doc/nanorc.5 b/doc/nanorc.5
index 83ddb69a..15c71c70 100644
--- a/doc/nanorc.5
+++ b/doc/nanorc.5
@@ -794,7 +794,11 @@ while keeping the cursor in the same text position, if possible.
 (This function is bound by default to <Alt+Down>.)
 .TP
 .B center
-Scrolls the line with the cursor to the middle of the screen.
+Scrolls the line with the cursor to the middle of the viewport.
+.TP
+.B cycle
+Scrolls the line with the cursor first to the middle of the viewport,
+then to the top, then to the bottom.
 .TP
 .B prevword
 Moves the cursor to the beginning of the previous word.
-- 
2.45.1