Bump to 1.10.0-dev for development of next release
Bump the readme's version number to the next dev release.
[travis]: https://travis-ci.org/mcu-tools/mcuboot
[license]: https://github.com/mcu-tools/mcuboot/blob/main/LICENSE
-This is MCUboot version 1.9.0
+This is MCUboot version 1.10.0-dev
MCUboot is a secure bootloader for 32-bits microcontrollers. It defines a
common infrastructure for the bootloader and the system flash layout on
