docs: Move upgrade instructions to the last item in the FAQ

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

docs/FAQ.md

@@ -20,8 +20,8 @@ Frequently asked questions
 17. [Will the heaters be left on if the Raspberry Pi crashes?](#will-the-heaters-be-left-on-if-the-raspberry-pi-crashes)
 18. [How do I convert a Marlin pin number to a Klipper pin name?](#how-do-i-convert-a-marlin-pin-number-to-a-klipper-pin-name)
 19. [How do I cancel an M109/M190 "wait for temperature" request?](#how-do-i-cancel-an-m109m190-wait-for-temperature-request)
-20. [How do I upgrade to the latest software?](#how-do-i-upgrade-to-the-latest-software)
+20. [Can I find out whether the printer has lost steps?](#can-i-find-out-whether-the-printer-has-lost-steps)
-21. [Can I find out whether the printer has lost steps?](#can-i-find-out-whether-the-printer-has-lost-steps)
+21. [How do I upgrade to the latest software?](#how-do-i-upgrade-to-the-latest-software)
 
 ### How can I donate to the project?
 
@@ -442,6 +442,24 @@ terminal tab and issue a FIRMWARE_RESTART command to clear the Klipper
 error state.  After completing this sequence, the previous heating
 request will be canceled and a new print may be started.
 
+### Can I find out whether the printer has lost steps?
+
+In a way, yes. Home the printer, issue a `GET_POSITION` command, run
+your print, home again and issue another `GET_POSITION`. Then compare
+the values in the `mcu:` line.
+
+This might be helpful to tune settings like stepper motor currents,
+accelerations and speeds without needing to actually print something
+and waste filament: just run some high-speed moves in between the
+`GET_POSITION` commands.
+
+Note that endstop switches themselves tend to trigger at slightly
+different positions, so a difference of a couple of microsteps is
+likely the result of endstop inaccuracies. A stepper motor itself can
+only lose steps in increments of 4 full steps. (So, if one is using 16
+microsteps, then a lost step on the stepper would result in the "mcu:"
+step counter being off by a multiple of 64 microsteps.)
+
 ### How do I upgrade to the latest software?
 
 The general way to upgrade is to ssh into the Raspberry Pi and run:
@@ -484,21 +502,3 @@ needed for a software change to take effect.
 When upgrading the software, be sure to check the
 [config changes](Config_Changes.md) document for information on
 software changes that may require updates to your printer.cfg file.
-
-### Can I find out whether the printer has lost steps?
-
-In a way, yes. Home the printer, issue a `GET_POSITION` command, run
-your print, home again and issue another `GET_POSITION`. Then compare
-the values in the `mcu:` line.
-
-This might be helpful to tune settings like stepper motor currents,
-accelerations and speeds without needing to actually print something
-and waste filament: just run some high-speed moves in between the
-`GET_POSITION` commands.
-
-Note that endstop switches themselves tend to trigger at slightly
-different positions, so a difference of a couple of microsteps is
-likely the result of endstop inaccuracies. A stepper motor itself can
-only lose steps in increments of 4 full steps. (So, if one is using 16
-microsteps, then a lost step on the stepper would result in the "mcu:"
-step counter being off by a multiple of 64 microsteps.)