fix bad naming of invoke.sh.in

Author: lstein

binary_installer/install.sh.in

@@ -213,7 +213,7 @@ _err_exit $? _err_msg
 
 echo -e "\n***** Installed InvokeAI *****\n"
 
-cp binary_installer/invoke.sh .
+cp binary_installer/invoke.sh.in ./invoke.sh
 echo -e "\n***** Installed invoke launcher script ******\n"
 
 # more cleanup