Correct diagram descriptions

state that the image acceptance is performed for all the images.

source/chapter3-fwupdate.rst

@@ -116,7 +116,7 @@ Post-capsule install reboot success
 #. OS inspects the information in the ESRT
 #. OS performs an image acceptance test for any un-accepted image
 #. If all image tests pass correctly the OS exists the FW update procedure
-#. OS install the image acceptance capsule for every image that passes the acceptance test
+#. OS install the image acceptance capsule when all acceptance tests pass
 #. Firmware processes the image acceptance capsule and updates the boot bank
 #. On the next reboot BL2 will detect the new version (rollback counter < fw
    rollback counter).  It must then update the rollback counters accordingly.
@@ -161,5 +161,5 @@ Post-capsule install image fails OS test
 #. OS boots
 #. OS inspects the information in the ESRT
 #. OS performs an image acceptance test for any un-accepted image
-#. If any image tests fails, the OS install an "FW downgrade request" capsule, instructing UEFI to select the previously working FW bank
+#. If any image tests fails, the OS install a "FW downgrade request" capsule, instructing UEFI to select the previously working FW bank, or imediately reboots.
 #. OS requests a system reset