Update runtime files
diff --git a/runtime/syntax/abel.vim b/runtime/syntax/abel.vim
index 67d7e4f..dbed541 100644
--- a/runtime/syntax/abel.vim
+++ b/runtime/syntax/abel.vim
@@ -59,7 +59,7 @@
 syn match  abelTypeIdChar "[,']" contained
 syn match  abelTypeIdEnd  ";" contained
 
-" string contstants and special characters within them
+" string constants and special characters within them
 syn match  abelSpecial contained "\\['\\]"
 syn region abelString start=+'+ skip=+\\"+ end=+'+ contains=abelSpecial