Update README.md

README.md

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 # Rocketry-Club
-Software for model rocket 
+Software for TVC controlled model rocket 
 Includes: PID control, Madgwick filter
 
-# Hardware sources
-Arduino/teensy interrupts: https://www.arduino.cc/reference/en/language/functions/external-interrupts/attachinterrupt/
-
 # Software Sources
-Linking C files using GCC: https://randerson112358.medium.com/link-c-programs-7282712fca1f
-(this may be necessary to produce a single *c* $\rightarrow$ *.ino* file in order to upload onto teensy)
+https://github.com/bjohnsonfl/Madgwick_Filter
+https://forums.parallax.com/uploads/attachments/41167/106661.pdf
+http://www.olliw.eu/2013/imu-data-fusing/