[CLA] Signature for vuongtien2411

Done at #19025

doc/cla/individual/vuongtien2411.md

+Vietnam, 2017-08-24
+
+I hereby agree to the terms of the Odoo Individual Contributor License
+Agreement v1.0.
+
+I declare that I am authorized and able to make this agreement and sign this
+declaration.
+
+Signed,
+
+Do Vuong Tien  tiendv@trobz.com https://github.com/vuongtien2411