Update README.md

README.md

 # PCB for current/power measurement of MSP430FR5994
-  + Modified design from TI's MSP430FR5994 Launchpad
-    + removed emulation unit, power supply etc
-    + added current sense amplifier (Gain: 200, BW: 100 kHz) between mcu and main decoupling capacitor
-    + added load switch that turns controls supply to mcu
-    + decoupled mcu from main VCC
-    + reduced layout from 4 to 2 layers
+This is a simple 2 layer PCB made for high frequency ($\approx100\ kHz$) current measurement of the MSP430FR6994 microcontroller. 
+The main purpose is to measure current going between the MCU and its decoupling capacitance, with high enough bandwidth to capture behaviour on an intermittent supply.
+
+The board does not currently include supply voltage supervision circuitry to turn on and off the included load switch (that controlls the MUC's supply voltage).
+The load switch therefore has to be controlled by an external circuit, or connected via a jumper such that it's always on.
+
+The board was based on the TI's MSP430FR5994 Launchpad board, with the folowing changes:
+
+  + removed emulation unit, power supply etc
+  + added current sense amplifier (Gain: 200, BW: 100 kHz) between mcu and main decoupling capacitor
+  + added load switch that turns controls supply to mcu
+  + decoupled mcu from main VCC
+  + reduced layout from 4 to 2 layers
+
+# Schematic and layout
+![Alt text](./Documentation/schematic_annotated.png "Annotated schematic")
+