runtime(doc): fix some small errors

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/motion.txt b/runtime/doc/motion.txt
index e5b8151..510d800 100644
--- a/runtime/doc/motion.txt
+++ b/runtime/doc/motion.txt
@@ -1,4 +1,4 @@
-*motion.txt*    For Vim version 9.1.  Last change: 2024 Dec 16
+*motion.txt*    For Vim version 9.1.  Last change: 2024 Dec 17
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -125,8 +125,8 @@
 					*inclusive-motion-selection-exclusive*
 When 'selection' is "exclusive", |Visual| mode is active and an inclusive
 motion has been used, the cursor position will be adjusted by another
-character to the right, so that visual selction includes the expected text and
-can be acted upon.
+character to the right, so that the visual selection includes the expected
+text and can be acted upon.
 
 								*forced-motion*
 FORCING A MOTION TO BE LINEWISE, CHARACTERWISE OR BLOCKWISE
diff --git a/runtime/doc/pi_tutor.txt b/runtime/doc/pi_tutor.txt
index f4f86e8..590d2e4 100644
--- a/runtime/doc/pi_tutor.txt
+++ b/runtime/doc/pi_tutor.txt
@@ -1,4 +1,4 @@
-*pi_tutor.txt*    For Vim version 9.1.  Last change: 2024 Dec 16
+*pi_tutor.txt*    For Vim version 9.1.  Last change: 2024 Dec 17
 
 INTERACTIVE TUTORIALS FOR VIM			 *vim-tutor-mode*
 
@@ -30,7 +30,7 @@
 			language if possible (|v:lang|), e.g. to open the
 			chapter 1 of the Italian tutor, use: >
 
-			:lang it_IT.utf-8
+			:lang it_IT.UTF-8
 			:Tutor
 <
 =============================================================================
diff --git a/runtime/doc/usr_01.txt b/runtime/doc/usr_01.txt
index 70a3f9b..556774e 100644
--- a/runtime/doc/usr_01.txt
+++ b/runtime/doc/usr_01.txt
@@ -1,4 +1,4 @@
-*usr_01.txt*	For Vim version 9.1.  Last change: 2024 Dec 16
+*usr_01.txt*	For Vim version 9.1.  Last change: 2024 Dec 17
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -117,8 +117,9 @@
 >
 	vimtutor
 
-On MS-Windows you can find it in the Program/Vim menu.  Or execute
-vimtutor.bat in the $VIMRUNTIME directory.
+On MS-Windows you can find it in the "Program/Vim 9.1" menu.  Or execute
+vimtutor.bat from the installation directory (You can use `:echo $VIMRUNTIME`
+from within Vim to find this directory).
 
 This will make a copy of chapter 1 tutor file, so that you can edit it without
 the risk of damaging the original.  To continue with chapter 2, you can use