Update runtime files
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 3dfcf6a..7c5b2b8 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1039,7 +1039,7 @@
`true` is the same as `v:true`, `false` the same as `v:false`, `null` the same
as `v:null`.
-While `null` has the type "special", the other "null_" types have the type
+While `null` has the type "special", the other "null_" values have the type
indicated by their name. Quite often a null value is handled the same as an
empty value, but not always. The values can be useful to clear a script-local
variable, since they cannot be deleted with `:unlet`. E.g.: >