diff --git a/README.md b/README.md
index 67c96dd..4b4ecf1 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,12 @@
 | vsyn1  | mprj_io[21] | axon_syn  | mprj_io[30] |
 |        |             | i_in      | mprj_io[31] |
 
+### extracted netlist simulation 
+Spiking pattern at v_buff for i_in = 10pA DC 
+<p align=”center”>
+<img src="/doc/sample_sim.png" width="75%"> 
+</p>
+
 ## SONOS array
 A 2x2 array of nfet sonos cells with transistor sizing 420nmx150nm.
 <p align=”center”>
@@ -71,4 +77,4 @@
 ```shell
 git clone https://github.com/Bryce-Readyhough/caravel_UNCC_MPW_1.git
 make uncompress -j$nproc
-```
\ No newline at end of file
+```