Fix checkbox field example event documentation. Closes #1270
Fix checkbox field example event documentation. Closes #1270

wastemobile/Symphony2.3.6,brendo/symphony-2,astudio/remixhair,DeuxHuitHuit/symphony-2,jensscherbl/symphony,NikoMostWanted/symphony-2,allen/auth.getsymphony.com,jurajkapsz/symphony-2,DavidForster/symphony-2,thebestsophist/personal-health-diary,bauhouse/sym-pears,jurajkapsz/symphony-2,twiro/symphony-2,jonmifsud/symphony-2,symphonycms/symphony-2,johnpuddephatt/symphony-2,ljonka/symphony-2,BloodBrother/symphony-2,bauhouse/Piano-Sonata,DeuxHuitHuit/symphony-2,symphonycms/sym-getsymphony,DavidForster/symphony-2,NikoMostWanted/symphony-2,symphonycms/sym-getsymphony,jdsimcoe/symphony-boilerplate,bauhouse/sym-todo-list,blaXXabla/projet_test_symphony,BloodBrother/symphony-2,allen/auth.getsymphony.com,mazedigital/jcilearn,alexnantel88/symphony-2,avanteweb/symphony-2,roshinebagha/Symphony-Test,michael-e/symphony-2,avanteweb/symphony-2,astudio/remixhair,blaXXabla/projet_test_symphony,ayellowraven/projectplaten,thebestsophist/personal-health-diary,jdsimcoe/symphony-boilerplate,michael-e/symphony-2,bauhouse/Piano-Sonata,jensscherbl/symphony,brendo/symphony-2,jdsimcoe/symphony-boilerplate,rzantolas/Symphony-Test,symphonycms/symphony-2,mazedigital/jcilearn,twiro/symphony-2,ljonka/symphony-2,roshinebagha/Symphony-Test,jonmifsud/symphony-2,wastemobile/Symphony2.3.6,bauhouse/sym-pears,ayellowraven/projectplaten,alexnantel88/symphony-2,rzantolas/Symphony-Test,johnpuddephatt/symphony-2,mazedigital/jcilearn,jdsimcoe/symphony-boilerplate,bauhouse/sym-todo-list