Improve code style in jsx-seconds-elapsed example
Improve code style in jsx-seconds-elapsed example

maskinoshita/cyclejs,staltz/cycle,feliciousx-open-source/cyclejs,staltz/cycle,maskinoshita/cyclejs,cyclejs/cyclejs,feliciousx-open-source/cyclejs,ntilwalli/cyclejs,maskinoshita/cyclejs,ntilwalli/cyclejs,cyclejs/cycle-core,usm4n/cyclejs,ntilwalli/cyclejs,cyclejs/cyclejs,feliciousx-open-source/cyclejs,cyclejs/cycle-core,cyclejs/cyclejs,usm4n/cyclejs,maskinoshita/cyclejs,usm4n/cyclejs,feliciousx-open-source/cyclejs,ntilwalli/cyclejs,cyclejs/cyclejs,usm4n/cyclejs