Add "Mounting Hardware" column to toolhead readme. (#46)

* Add "Mounting Hardware" column to toolhead readme.

Adding hardware to aid users in toolhead assembly.

* Update README.md

Add more hardware notes

STLs/Stealthburner/Printheads/README.md

@@ -4,14 +4,14 @@ Choose files containing ***front*** based on your hotend and ***rear_cw1*** / **
 
 ## Printhead Compatibility:
 
-| Hotend | Compatible Parts | Notes |
-|--------|------------------|-------|
-| Phaetus/Trianglelab Dragon | (P-DRG) | Remove the screws attaching the groove-mount adaptor to access the hard mounting points. |
-| Phaetus BMO | (P-BMO) | Unscrew the groove-mount adaptor to access the hard mounting points. |
-| Phaetus BMS (6 fins) | (P-BMS6) | Phaetus has two versions of the BMS; Count the number of fins on your hotend to determine your version. |
-| Phaetus BMS (7 fins) | (P-BMS7) | Phaetus has two versions of the BMS; Count the number of fins on your hotend to determine your version. |
-| Phaetus Rapido | (P-RPD) | Only the standard Rapido is supported (No UHF support). See the additional note about [heatsink orientations](phaetus_rapido/README.md). |
-| E3D Revo Micro | (E-RM) | If your mount nut has a ridge on it, put that to the top. |
-| E3D Revo Six | (E-V/R6) |  |
-| E3D V6 | (E-V/R6) |  |
-| E3D Revo Voron | (E-RV) |  |
+| Hotend | Compatible Parts | Mounting Hardware | Notes |
+| :--------: | :--------: | :--------: | :--------: 
+| Phaetus/Trianglelab Dragon | (P-DRG) | 4x M2.5x8mm | Remove the screws attaching the groove-mount adaptor to access the hard mounting points. |
+| Phaetus BMO | (P-BMO) | 4x M2.5x8mm | Unscrew the groove-mount adaptor to access the hard mounting points. |
+| Phaetus BMS (6 fins) | (P-BMS6) | 2x M3x12mm | Phaetus has two versions of the BMS; Count the number of fins on your hotend to determine your version. |
+| Phaetus BMS (7 fins) | (P-BMS7) | 2x M3x12mm | Phaetus has two versions of the BMS; Count the number of fins on your hotend to determine your version. |
+| Phaetus Rapido | (P-RPD) | 4x M2.5x8mm | Only the standard Rapido is supported (No UHF support). See the additional note about [heatsink orientations](phaetus_rapido/README.md). |
+| E3D Revo Micro | (E-RM) | M12x1.5mm Plastic Nut | If your mount nut has a ridge on it, put that to the top. |
+| E3D Revo Six | (E-V/R6) | N/A |  |
+| E3D V6 | (E-V/R6) | N/A |  |
+| E3D Revo Voron | (E-RV) | 4x M3x8mm |  |