runtime(doc): mention special case of i_CTRL-R_-
closes: #12947
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
index ccf5178..6248f74 100644
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -127,7 +127,11 @@
'/' the last search pattern
':' the last command-line
'.' the last inserted text
+ *i_CTRL-R_-*
'-' the last small (less than a line) delete
+ register. This is repeatable using |.| since
+ it remembers the register to put instead of
+ the literal text to insert.
*i_CTRL-R_=*
'=' the expression register: you are prompted to
enter an expression (see |expression|)