Improve stock bootloader list (#9067)

* Improve stock bootloader list

* Switch version numbers on USB64/128 bootloaders

* Unix line endings for PS2AVRGB bootloader

* Update PS2AVRGB bootloader to 1.0.1

* Also mention bootloader rule

* Didn't need to change the links

docs/isp_flashing_guide.md

@@ -115,12 +115,18 @@ The simplest and quickest way to get things back to normal is to flash only a bo
 
 You can find the stock bootloaders in the [`util/` folder](https://github.com/qmk/qmk_firmware/tree/master/util). Be sure to flash the correct bootloader for your chip:
 
-* [`atmega32u4`](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_atmega32u4_1_0_0.hex) - Most keyboards, Planck Rev 1-5, Preonic Rev 1-2
-* [`Pro Micro`](https://github.com/sparkfun/Arduino_Boards/blob/master/sparkfun/avr/bootloaders/caterina/Caterina-promicro16.hex) - The default bootloader for Pro Micro controllers
-* [`at90usb1286`](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_at90usb128x_1_0_1.hex) - Planck Light Rev 1
-* [`atmega32a`](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_atmega32a_1_0_0.hex) - jj40, and other V-USB/ps2avrGB keyboards
-
-If you're not sure what your board uses, look in the `rules.mk` file for the keyboard in QMK. The `MCU =` line will have the value you need. It may differ between different versions of the board.
+* **Atmel DFU**
+  * [ATmega16U4](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_atmega16u4_1.0.1.hex)
+  * [ATmega32U4](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_atmega32u4_1.0.0.hex)
+  * [AT90USB64](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_at90usb64_1.0.0.hex)
+  * [AT90USB128](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_at90usb128_1.0.1.hex)
+* **Caterina**
+  * [Pro Micro (5V/16MHz)](https://github.com/sparkfun/Arduino_Boards/blob/master/sparkfun/avr/bootloaders/caterina/Caterina-promicro16.hex)
+  * [Pro Micro (3.3V/8MHz)](https://github.com/sparkfun/Arduino_Boards/blob/master/sparkfun/avr/bootloaders/caterina/Caterina-promicro8.hex)
+* **BootloadHID (PS2AVRGB)**
+  * [ATmega32A](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_ps2avrgb_bootloadhid_1.0.1.hex)
+
+If you're not sure what your board uses, look in the `rules.mk` file for the keyboard in QMK. The `MCU` and `BOOTLOADER` lines will have the value you need. It may differ between different versions of the board.
 
 ### Production Techniques