diff --git a/doc/us/coxpcall.png b/doc/coxpcall.png similarity index 100% rename from doc/us/coxpcall.png rename to doc/coxpcall.png diff --git a/doc/us/doc.css b/doc/doc.css similarity index 100% rename from doc/us/doc.css rename to doc/doc.css diff --git a/doc/us/index.html b/doc/index.html similarity index 100% rename from doc/us/index.html rename to doc/index.html diff --git a/doc/us/license.html b/doc/license.html similarity index 100% rename from doc/us/license.html rename to doc/license.html