Update README.md

The good news ... and the bad news ... are the same thing ...
bouffalolab/bouffalo_sdk#46 (comment)

After evaluating the current status of the bl808 soc support in the bl_mcu_sdk we have decided to hold off on development until things are a little more complete and stable. It seems like most of the initial development for this soc is geared toward supporting a linux platform ... however, the bl_mcu_sdk is used by the bl808_linux project so we assume most if not all development will eventually end up in the bl_mcu_sdk ... specifically the wifi and ble stuff ... bouffalolab/bouffalo_sdk#46 (comment)

README.md

@@ -7,4 +7,5 @@ This is a community made Arduino Core specifically for the Bouffalo Labs BL808 R
 * [Sipeed MAIX M1s Dock](https://wiki.sipeed.com/hardware/en/maix/m1s/m1s_dock.html)
 * [Sipeed MAIX M1s Module](https://wiki.sipeed.com/hardware/en/maix/m1s/m1s_module.html)
 ### Status
-12/17/2022 - Received development boards and module
+12/17/2022 - Received development boards and module.
+12/24/2022 - We have postponed the initial development until further notice.