Update runtime files. Add support for J.
diff --git a/runtime/doc/usr_45.txt b/runtime/doc/usr_45.txt
index 3036981..828ea6f 100644
--- a/runtime/doc/usr_45.txt
+++ b/runtime/doc/usr_45.txt
@@ -328,8 +328,8 @@
*45.5* Entering language text
Computer keyboards don't have much more than a hundred keys. Some languages
-have thousands of characters, Unicode has ten thousands. So how do you type
-these characters?
+have thousands of characters, Unicode has over hundred thousand. So how do
+you type these characters?
First of all, when you don't use too many of the special characters, you
can use digraphs. This was already explained in |24.9|.
When you use a language that uses many more characters than keys on your