diff --git a/docs/lessons/chart1.png b/docs/static/mb/lessons/chart1.png similarity index 100% rename from docs/lessons/chart1.png rename to docs/static/mb/lessons/chart1.png diff --git a/docs/lessons/seismograph9.png b/docs/static/mb/lessons/seismograph9.png similarity index 100% rename from docs/lessons/seismograph9.png rename to docs/static/mb/lessons/seismograph9.png