Update changelog

Author: kalymos

changelog

@@ -124,13 +124,15 @@ Main changes:
 - SUBQ sampling timing reverted to sample while clock is low, instead of right after it goes high
 
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+
 Update: 10 July 2017
 
 - finished porting to ATtinyX5 (25,45,85 although the 25 has too little resources. for now.)
 - store the licensing symbols in flash again, frees a lot of RAM
 - bit retrieval code lifted from AttyNee (Nice work guys!)
 - extra RAM allows SoftwareSerial debugging prints on an ATtiny45!
 - nicer intro readme ;p
+
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 Update: 16 July 2017
@@ -139,4 +141,11 @@ Update: 16 July 2017
 For now it only supports Arduino boards (ATmega chips).
 Also, the Arduino must either be powered on first or have no bootloader present (flashed using SPI) since I expect a signal ~1 second after power on.
 8Mhz boards are also supported.
+
+------------------------------------------------------------
+
+ Update: 16 August 2017
+ 
+ -changed the timing for the PAL PM-41 patch to make it more reliable (I had it failing occasionally).
+ Also I added a warning for people not to use 5V.