- minor string change

appGUI/MainGUI.py

@@ -536,7 +536,7 @@ class MainGUI(QtWidgets.QMainWindow):
         self.menuhelp.addSeparator()
 
         self.menuhelp_readme = self.menuhelp.addAction(
-            QtGui.QIcon(self.app.resource_location + '/warning.png'), _('ReadMe?'))
+            QtGui.QIcon(self.app.resource_location + '/warning.png'), _('How To'))
 
         self.menuhelp_about = self.menuhelp.addAction(
             QtGui.QIcon(self.app.resource_location + '/about32.png'), _('About FlatCAM'))