Update runtime files
diff --git a/runtime/doc/usr_10.txt b/runtime/doc/usr_10.txt
index d551d11..10340fd 100644
--- a/runtime/doc/usr_10.txt
+++ b/runtime/doc/usr_10.txt
@@ -1,4 +1,4 @@
-*usr_10.txt* For Vim version 8.1. Last change: 2006 Nov 05
+*usr_10.txt* For Vim version 8.1. Last change: 2019 Nov 22
VIM USER MANUAL - by Bram Moolenaar
@@ -370,7 +370,8 @@
was specified in this example. This is different from ":substitute", which
works on one line without a range.
The command isn't perfect, since it also matches lines where "//" appears
-halfway a line, and the substitution will also take place before the "//".
+halfway through a line, and the substitution will also take place before the
+"//".
Just like with ":substitute", any pattern can be used. When you learn more
complicated patterns later, you can use them here.
@@ -634,8 +635,8 @@
:set textwidth
Now lines will be broken to take only up to 72 characters. But when you
-insert text halfway a line, or when you delete a few words, the lines will get
-too long or too short. Vim doesn't automatically reformat the text.
+insert text halfway through a line, or when you delete a few words, the lines
+will get too long or too short. Vim doesn't automatically reformat the text.
To tell Vim to format the current paragraph: >
gqap