diff --git a/docs/figs/opt_stiffness_wz_fx_dx.pdf b/docs/figs/opt_stiffness_wz_fx_dx.pdf
index 05ff1a6..b07b7fb 100644
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diff --git a/docs/figs/opt_stiffness_wz_fx_dx.png b/docs/figs/opt_stiffness_wz_fx_dx.png
index a56331f..0534074 100644
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diff --git a/org/compensation_gravity_forces.org b/org/compensation_gravity_forces.org
index f60d16c..91f1534 100644
--- a/org/compensation_gravity_forces.org
+++ b/org/compensation_gravity_forces.org
@@ -317,5 +317,7 @@ Verification that nothing is moving
 #+caption: Motion of the sample at the start of the simulation in presence of gravity when compensating the gravity forces  ([[./figs/transient_phase_gravity_compensation.png][png]], [[./figs/transient_phase_gravity_compensation.pdf][pdf]])
 [[file:figs/transient_phase_gravity_compensation.png]]
 * Conclusion
-This initialization technique permits to compute the required forces/torques to be applied in each joint in order to compensate for gravity forces.
-This initialization should be redone for each configuration (change of sample mass, change of tilt angle), but not when changing the stiffness of joints, for instant when changing from lorentz based nano-hexapod or piezo based.
+#+begin_important
+  This initialization technique permits to compute the required forces/torques to be applied in each joint in order to compensate for gravity forces.
+  This initialization should be redone for each configuration (change of sample mass, change of tilt angle), but not when changing the stiffness of joints, for instant when changing from lorentz based nano-hexapod or piezo based.
+#+end_important