Update runtime/tutor

Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

runtime/tutor

@@ -1350,8 +1350,8 @@ a list of available commands.
 To open a new empty buffer in a vertical split on the right half
 of your current window, use Ctrl-w nv (i.e., press Ctrl
 and w simultaneously, then press n, followed by v). Your current
-window will now split in 2 vertically, a new empty buffer split
+window will now split in 2 vertically. A new empty buffer split
-will appear on the right half, and your cursor will jump to the
+will appear on the right half and your cursor will jump to the
 new vertical split.
 
 To create a new empty buffer in a horizontal split, press
@@ -1368,7 +1368,7 @@ new horizontal split.
 
 Use Ctrl-w k to move to the split above your current split. Use
 Ctrl-w j to move to the split below. Use Ctrl-w h to move to
-the split on the left, and Ctrl-w l to move to the split on the
+the split on the left and Ctrl-w l to move to the split on the
 right. To navigate to the next split (in the order they were
 opened), press Ctrl-w w.
 
@@ -1388,9 +1388,9 @@ the left press Ctrl-w o to close all except this split.
 =               CHAPTER 13.3 SPLIT CURRENT BUFFER               =
 =================================================================
 
-To split the view of the current buffer, use Ctrl-w s to split it
+Use Ctrl-w s to split the view of the current buffer horizontally
-horizontally and open a copy on the right, and Ctrl-w v to split it
+and Ctrl-w v to split it vertically with the buffer opened in both
-vertically with the buffer opened in both splits.
+splits.
 
 Close extra splits with Ctrl-w o to return to a single window view.
 
@@ -1435,12 +1435,12 @@ or path instead of a new empty buffer.
 Open a split on the left with :vs hello1 and then a split below
 with :hs hello2.
 
-From hello2, press Ctrl-w K to swap it with the split above. Now,
+From hello2, press Ctrl-w K to swap it with the split above. Now
-hello2 is at the top, while hello1 is at the bottom.
+hello2 is at the top while hello1 is at the bottom.
 
 Still from hello2, press Ctrl-w H to swap with the split on the
-left: now, hello2 is on the left, and the tutor is on the top
+left: now hello2 is on the left and the tutor is on the top
-right. After Ctrl-w, you can use HJKL to split with the buffer
+right. After Ctrl-w you can use HJKL to split with the buffer
 on the left / below / above / on the right.
 
 Move back to the tutor split, and press Ctrl-w o to only keep
@@ -1476,8 +1476,8 @@ the tutor window.
 =             CHAPTER 13.7 OPEN SPLIT FROM FILEPICKER           =
 =================================================================
 
-Splits can also be opened directly from the filepicker. Press
+Splits can also be opened directly from the file picker. Press
-space f to open the filepicker. From there, you can type in text
+space f to open the file picker. From there, you can type in text
 to perform file lookup with fuzzy matching, and use the arrows
 up and down to move the selected file (indicated by the > symbol).
 If you want to exit the file picker, press Escape.
@@ -1498,7 +1498,7 @@ splits except this one.
 =                        CHAPTER 13 RECAP                       =
 =================================================================
 
-Splits can be used to display either the same buffer several times,
+Splits can be used to display either the same buffer several times
 or several buffers. To access the main windows and splits commands,
 press Ctrl-w . You can move between splits with Ctrl-w hjkl ,
 you can close a split with Ctrl-w q , and you can close all but