Updated README

README.md

@@ -4,6 +4,8 @@ WavetablePi is a wavetable module based on the Raspberry Pi Zero 2 W running [mt
 It is capable of emulating several midi synthesizers, including mt32, sc55 and general midi with custom sound fonts.
 For a complete feature list please refer to the [mt32-pi](https://github.com/dwhinham/mt32-pi) project.
 
+For controlling the mt32-pi from DOS, please use [mt32-pi-control](https://github.com/gmcn42/mt32-pi-control).
+
 <img src='img/WavetablePi_rev0.1_purple_PCB.jpg' alt='WavetablePi with OLED Display and DAC' height=240>
 <p float="left">
 <img src='img/WavetablePi_PCB_front.png' alt='WavetablePi PCB Front' height=240>
@@ -15,6 +17,13 @@ For a complete feature list please refer to the [mt32-pi](https://github.com/dwh
 - It currently supports two modes of audio: using the raspberry pi's PWM audio out (which is noisy and sounds pretty bad), and an external Hi-Fi PCM5102A based DAC.
 - You can also attach a 0.91 OLED SSD1306 I2C 128x32 display.
 
+# I want to build one myself!
+- Please note that the current version of the WavetablePi board is quite tall (76mm x 40mm) so please check if it fits your sound card, especially if it needs to be placed perpendicularly to the ISA slots.
+- Also please make sure that there is enough clearance between the WavetablePi and the sound card. Some cards have large components that may touch the raspberry pi a
+- A WavetablePi with the DAC or the OLED display takes quite a bit of vertical space, so you will end up wasting one ISA slot! There is just no room for a card right next to the sound card, as the OLED display and the DAC will be in the way.
+- Finally please check that the PCM5102A HiFi DAC is in the form factor that fits the board. The one I am using is approximately 32mm x 17mm. Also please check that the pinout matches.
+- For ordering the PCB, you usually just need to upload the zipped [gerber files](https://github.com/scrapcomputing/WavetablePi/releases/download/rev0.2/WavetablePi_rev0.2.zip) to the fab's website.
+
 # Bill of materials
 
 Item                                     | ##  | Description
@@ -28,5 +37,5 @@ Jumper 2.54mm pitch                      | 2   | Jumpers for the audio selection
 Resistor 22K Ohm                         | 1   |
 Resistor 10K Ohm                         | 1   |
 0.91 OLED SSD1306 I2C 128x32 module      | 1   | (Optional)
-PCM5102A I2S DAC Module                  | 1   | (Optional but highly recommended) Please check the PCB for the supported dimensions
+PCM5102A I2S DAC Module                  | 1   | (Optional but highly recommended) Please check the PCB for the supported dimensions and form factor!