Update docs yet again

readme.md

@@ -32,10 +32,12 @@ There is minimal use of assembly for startup and to interface with
 
 ## Running on the Calculator
 
-The on-calculator name of the program is `REFAPP`.
-To start the program, use the usual `Asm(prgm)` option found in the _CATALOG_ menu
-and select the `REFAPP` program. To exit the blinky _ON_/_OFF_ show,
-press the enter key.
+Execution:
+  - After build, locate `bin/refapp-8xp`.
+  - Drag `refapp-8xp` onto the calculator using the standard method with [TI Connect version 4](https://education.ti.com/en/software/details/en/B59F6C83468C4574ABFEE93D2BC3F807/swticonnectsoftware). Important: use version 4 for the TI-84 Plus.
+  - The on-calculator name of the program is `REFAPP`.
+  - To start the program, use the usual `Asm(prgm)` option found in the _CATALOG_ menu and select the `REFAPP` program.
+  - To exit the blinky _ON_/_OFF_ show, press the enter key.
 
 The running programm in the toggle-state _ON_ is shown in the image below.