Update runtime files
diff --git a/runtime/autoload/decada.vim b/runtime/autoload/decada.vim
index 5124429..fda2b76 100644
--- a/runtime/autoload/decada.vim
+++ b/runtime/autoload/decada.vim
@@ -23,7 +23,7 @@
function decada#Unit_Name () dict " {{{1
" Convert filename into acs unit:
- " 1: remove the file extenstion.
+ " 1: remove the file extension.
" 2: replace all double '_' or '-' with an dot (which denotes a separate)
" 3: remove a trailing '_' (which denotes a specification)
return substitute (substitute (expand ("%:t:r"), '__\|-', ".", "g"), '_$', "", '')