patch 9.1.0849: there are a few typos in the source

Problem:  there are a few typos in the source.
Solution: Correct typos (zeertzjq).

closes: #16026

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/quickfix.txt b/runtime/doc/quickfix.txt
index 37f0a18..48f192a 100644
--- a/runtime/doc/quickfix.txt
+++ b/runtime/doc/quickfix.txt
@@ -1,4 +1,4 @@
-*quickfix.txt*  For Vim version 9.1.  Last change: 2024 Nov 07
+*quickfix.txt*  For Vim version 9.1.  Last change: 2024 Nov 10
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -361,7 +361,7 @@
 			Example: >
     :g/mypattern/caddexpr expand("%") .. ":" .. line(".") ..  ":" .. getline(".")
 <
-						*:lad* *:addd* *:laddexpr*
+						*:lad* *:ladd* *:laddexpr*
 :lad[dexpr] {expr}	Same as ":caddexpr", except the location list for the
 			current window is used instead of the quickfix list.