documentation updates

Author: vroland

doc/source/about.rst

@@ -9,7 +9,10 @@ Display Types
 -------------
 
 The EPDiy driver board targets multiple E-Paper displays.
-As the driving method for all matrix-based E-ink displays seems to be more or less the same, only the right connector and timings are needed. The EPDiy PCB features a 33pin and a 39pin connector, which allow to drive the following display types:
+As the driving method for all matrix-based E-ink displays seems to be more or less the same, only the right connector and timings are needed. The EPDiy PCB features a 33pin, 34pin and a 39pin connector, which allow to drive a number of displays.
+A table of supported displays is mainained in the :code:`README.md` file.
+
+Some of the supported displays are showcased below.
 
 ED097OC4
 ~~~~~~~~

doc/source/getting_started.rst

@@ -52,8 +52,14 @@ To tune the controller output voltage, use the trimmer marked :code:`RV1`.
 You can measure the VCOM on the VCOM test pad (if your board has one) or directly
 at the amplifier:
 
+.. image:: img/vcom_tp.jpg
 .. image:: img/vcom_opamp.jpg
 
+.. note::
+    
+    Although most boards do not have it yet, image quality for partial updates can be improved by adding a (at least) 4.7uF capacitor between VCOM and GND. 
+    When adding this capacitor, take care with the polarity as VCOM is negative!
+
 Flashing the demo
 -----------------