added firmware section

firmware/.gitignore

@@ -0,0 +1,15 @@
+# Compiled binaries
+*.elf
+*.bin
+*.hex
+
+# Build artifacts and memory maps
+*.map
+*.o
+*.d
+*.lst
+
+# Specifically ignore the output files for our target
+main.elf
+main.bin
+main.map