Fix a doc typo
Raised by Blasius Bieselbert on IRC
diff --git a/tree.c b/tree.c
index 1b3876f..df6206d 100644
--- a/tree.c
+++ b/tree.c
@@ -9970,7 +9970,7 @@
* References of out-of scope ns-decls are remapped to point to @destDoc:
* 1) If @destParent is given, then nsDef entries on element-nodes are used
* 2) If *no* @destParent is given, then @destDoc->oldNs entries are used
-* This is the case when you have an unliked node and just want to move it
+* This is the case when you have an unlinked node and just want to move it
* to the context of
*
* If @destParent is given, it ensures that the tree is namespace