Fix extend

Author: OrKoN

index.bs

@@ -4093,7 +4093,7 @@ To <dfn>locate nodes using inner text</dfn> with given |context nodes|,
 
       1. [=list/Append=] |child| to |child nodes|.
 
-    1. [=Extend=] |returned nodes| with the result of [=trying=] to [=locate nodes using inner text=]
+    1. [=list/Extend=] |returned nodes| with the result of [=trying=] to [=locate nodes using inner text=]
       with |child nodes|, |selector|, |max depth|, |match type|, |ignore case|, and |maximum returned node count|.
 
   1. If |context node| does not implement {{HTMLElement}} then [=continue=].