[FIX] typo in doc
[FIX] typo in doc

splbio/openerp-web,MarkusTeufelberger/openerp-web,MarkusTeufelberger/openerp-web,splbio/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,gisce/openerp-web,gisce/openerp-web