add instructions on flashing to README.md

README.md

@@ -2,3 +2,15 @@
 
 
 1. Dvorak
+2. Parentheses on the main level.  
+
+
+# Flashing
+
+1. Commit and push the changes
+2. `gh watch` to watch it compile
+3. `rm *uf2` to remove previous firmware files if any
+4. `gh run download -n firmware` to download the firmware
+5. Connect the keyboard. `fdisk -l` to see its location.
+5. `sudo mount /dev/sdx /mnt/flash` to copy.
+6. Wait for the device to dissapear. Then flash the second one