Index: 06_hierarchy_imp.html
===================================================================
--- 06_hierarchy_imp.html	(revision 10022)
+++ 06_hierarchy_imp.html	(revision 10023)
@@ -36,7 +36,7 @@
 The multi-tree setup could have a new top sheet that just references all the roots
 and it's then a single-tree setup. So how does the multi-tree setup differs from
 the single-tree setup? Only that it does not have such a single top-level sheet
-that references all other. The reason to keep this possibility open is the
+that references all others. The reason to keep this possibility open is the
 project file. A project file can list all the top level sheets (roots), having to have
 a redundant or extra top level file just for this list would be annoying. On
 the other hand, the project file can describe non-cschem-aspects of the project,