add render, correct opamp polarity

Evidlo · Aug 31, 2021 · f19f077 · f19f077
1 parent 9124bd8
commit f19f077
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diff --git a/README.md b/README.md
@@ -1,3 +1,5 @@
 # uiuc_ruler
 
 PCB ruler for UIUC
+
+![](render.png)