--- a/QTfrontend/HWApplication.cpp	Fri Jul 26 01:09:30 2019 +0200
+++ b/QTfrontend/HWApplication.cpp	Fri Jul 26 01:13:48 2019 +0200
@@ -90,6 +90,7 @@
             form->NetConnectQuick(address, (quint16) port);
             return true;
         } else {
+            //: Here, “scheme” refers to the scheme of a Uniform Resource Identifier”
             const QString errmsg = tr("Scheme '%1' not supported").arg(scheme);
             MessageDialog::ShowErrorMessage(errmsg, form);
             return false;