blog: fix typo

Author: tg73

site/blog/2026-06-25-breaking-changes-v2-1-1.mdx

@@ -10,7 +10,7 @@ RatOS v2.1.1 will be released soon, and includes some hardware pin configuration
 **NOTE: Machines built using stock RatRig V-Core 4.0 and 4.1 hardware are not affected.**
 
 Please review the following **potentially breaking** changes carefully before upgrading machines using the following boards. You may need to adjust machine wiring or add overrides to `printer.cfg`.
-* Octopus Pro H273 V1.1 (control board)
+* Octopus Pro H723 V1.1 (control board)
   * `ratrig_vaoc_led_pin` has been changed from `PB0` to `PB10` ([#141](https://github.com/Rat-OS/RatOS-configurator/pull/141))
   * `y1_enable_pin` and `e_heater_pin` were swapped. The assignments are now `y1_enable_pin`=`PA2`, `e_heater_pin`=`PA0` ([#134](https://github.com/Rat-OS/RatOS-configurator/pull/134))
 * EBB42 Gen 2 (toolboard)