docs: cleaned up top level folder

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

TODO

@@ -1,34 +0,0 @@
-** FIXES **
-- LPD8806 & MAX5487 SPI constructor needs bus number etc...
-- MAX44000 i2c bus number required...
-- TCS3414CS & TH-2 i2c params required
-
-** SENSORS **
-
-Easy:
-MAX7221 - SPI 8 digit LED
-- https://mbed.org/components/MAX7221/
-- 
-SCA61T - inclinometer SPI
-- https://mbed.org/components/SCA61T-Inclinometer/
-DS1721 - i2c temperature/thermostat
-- https://mbed.org/components/DS1721/
-MPL3115A2 - i2c altimeter
-- https://mbed.org/components/MPL3115A2/
-- http://www.ebay.co.uk/itm/Barometric-Pressure-Altitude-Temperature-Sensor-I2C-MPL3115A2-/221499210102?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item339261b976
-TEMT6200 - Ambient light sensor
-- https://mbed.org/components/TEMT6200/
-CMPS03 - i2c digital compass
-- https://mbed.org/components/CMPS03-Digital-Compass/
-- http://www.ebay.co.uk/itm/Magnetic-Compass-CMPS03-/221437925374?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item338eba97fe
-- http://www.robot-italy.com/it/cmps03-robot-compass-module.html
-
-Medium
-E-ink sharp 1.3" LCD
-- https://mbed.org/components/13-SHARP-Memory-LCD/
-LCD-S401
-- https://mbed.org/components/Lumex-LCD-S401/
-
-Hard:
-RA8875 - 480x272 SPI 4 wire
-- https://mbed.org/components/RA8875-Based-Display/