Bump version.

Author: jonathanpallant

CHANGELOG.md

@@ -4,6 +4,11 @@
 
 * None
 
+## v0.5.0
+
+* Generates Host Interrupts
+* SPI interface reliability is improved
+
 ## v0.4.3
 
 * Fix version number reporting - now comes from `git describe`

README.md

@@ -39,7 +39,9 @@ See the [board-specific README](./neotron-bmc-pico/README.md)
 
 The NBMC firmware can also run on an ST Micro STM32F4 Nucleo board.
 
-See the [board-specific README](./neotron-bmc-nucleo/README.md)
+See the [board-specific README](./neotron-bmc-nucleo/README.md).
+
+It's currently quite out of date compared to the Neotron Pico version.
 
 ## SPI Communications Protocol