[CLA] Optesis SA signs Odoo CCLA

closes odoo/odoo#61970

Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>

doc/cla/corporate/optesis.md

+Senegal, 2020-11-18
+
+Optesis SA agrees to the terms of the Odoo Corporate Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Ibrahima GUEYE 44674493+optesis-ibg@users.noreply.github.com https://github.com/optesis-ibg
+
+List of contributors:
+
+Ibrahima GUEYE 44674493+optesis-ibg@users.noreply.github.com https://github.com/optesis-ibg
+Khalifa KANE 44680721+optesis-khk@users.noreply.github.com https://github.com/optesis-khk