Update 06-ReusingTestCode.md
Update 06-ReusingTestCode.md

variable $el is not initialized
justintilson/Codeception,pitpit/Codeception,Naktibalda/Codeception,hubbyist/Codeception,arduanov/Codeception,Codeception/Codeception,Vitafy/Codeception,hubbyist/Codeception,tiger-seo/Codeception,janthurau/Codeception,tasselchof/Codeception,EspadaV8/Codeception,Vreasy/Codeception,yhbyun/Codeception,mkudenko/Codeception,Codeception/Codeception,tasselchof/Codeception,janhenkgerritsen/Codeception,Vitafy/Codeception,SunDrop/Codeception,justintilson/Codeception,sergeyklay/Codeception,mkudenko/Codeception,janthurau/Codeception,Codeception/base,kt81/Codeception,TehJoE/Codeception,Naktibalda/Codeception,tasselchof/Codeception,orhan-swe/Codeception,yhbyun/Codeception,TehJoE/Codeception,Codeception/base,janhenkgerritsen/Codeception,pitpit/Codeception,SunDrop/Codeception,namnv609/Codeception,Codeception/base,EspadaV8/Codeception,tiger-seo/Codeception,Naktibalda/Codeception,kt81/Codeception,Vreasy/Codeception,arduanov/Codeception,namnv609/Codeception,sergeyklay/Codeception,orhan-swe/Codeception