diff --git a/doc/circuit.fzz b/doc/circuit.fzz
new file mode 100644
index 0000000..82721a2
Binary files /dev/null and b/doc/circuit.fzz differ
diff --git a/doc/circuit_bb.jpg b/doc/circuit_bb.jpg
new file mode 100644
index 0000000..14f595e
Binary files /dev/null and b/doc/circuit_bb.jpg differ