Update README.md

README.md

@@ -10,6 +10,8 @@ The specs for the test are a mass of 7.8 kg, traveling at 1 m/s, with an circula
 
 <a href='https://gitlab.cba.mit.edu/calischs/foam-impact/tree/master/pcb'>pcb/</a> contains design files and firmware for an embedded logging system using the ADXL372Z accelerometer and the Cortex M0 Adalogger board for Micro SD Card integration and battery management.
 
+<a href='https://gitlab.cba.mit.edu/calischs/foam-impact/tree/master/fw'>fw/</a> contains embedded code for detecting impact, sampling, and writing to the SD card.
+
 <a href='https://gitlab.cba.mit.edu/calischs/foam-impact/tree/master/analysis'>analysis/</a> contains an ipython notebook for analyzing the acceleration profiles, extracting peak acceleration levels and energy dissipation.
 
 <a href='https://gitlab.cba.mit.edu/calischs/foam-impact/tree/master/video'>video/</a> contains details of video analysis of the drop test.  For now, this is implemented with a Sony RX-100 IV camera shooting at 960 fps and the free software <a href='http://physlets.org/tracker/'>Tracker</a> to analyze acceleration profiles.