Merge pull request #1027 from caco3/remove-11.3.0-binaries

Remove 11.3.0 binaries as there are some issues with them

firmware/readme.md

@@ -0,0 +1,6 @@
+# Note
+
+The release `11.3.0` has some issues which could cause constant reboots!
+Please do not use it until we release a new version!
+
+See https://github.com/jomjol/AI-on-the-edge-device/issues/1023 for details.