added link of instruction set comparison with avr

readme.md

@@ -106,6 +106,7 @@ Uno Style LQFP32
 - Datasheet [(Chinese) LGT8FX8P_databook_V1.04](./docs/LGT8FX8P_databook_v1.0.4.ch.pdf)
 - Datasheet [(English) LGT8FX8P_databook_V1.04](./docs/LGT8FX8P_databook_v1.0.4.en.pdf) thanks to [#metallurge](https://github.com/RalphBacon/LGT8F328P-Arduino-Clone-Chip-ATMega328P/issues/2#issuecomment-517952757)
 - Datasheet [(English) LGT8FX8P_databook_V1.05](https://github.com/watterott/LGT8F328P-Testing/raw/master/LGT8FX8P_databook_v1.0.5-English.pdf) By [Watterrott](https://github.com/watterott/LGT8F328P-Testing)
+- [Instruction set clk vs avr](https://docs.google.com/spreadsheets/d/1EzwMkWOIMNDqnjpbzuchsLx5Zq_j927tvAPgvmSuP6M/edit?usp=sharing) By unknown, claim if you are the author 
 - [Work on the differential amplifier](./docs/differential-amplifier/readme.md)
 - "Forbiden tech from China has arrived" https://www.avrfreaks.net/forum/forbiden-tech-china-has-arrived?page=all
 - Larduino ISP for 328d https://github.com/Edragon/LGT/tree/master/Toolchain/ISP/LarduinoISP-master