Update on data-binding example comment.
Update on data-binding example comment.

Further clarification of how two-way data-binding is established in
this example.

ZLJASON/chocolatechip-ui,bright-sparks/chocolatechip-ui,rbiggs/chocolatechip-ui,tranc99/chocolatechip-ui,bright-sparks/chocolatechip-ui,rbiggs/chocolatechip-ui,chocolatechipui/chocolatechip-ui,zartata/chocolatechip-ui,chocolatechipui/chocolatechip-ui,sjolicoeur/chocolatechip-ui,sourcebitsllc/chocolatechip-ui,ZLJASON/chocolatechip-ui,sourcebits-robertbiggs/chocolatechip-ui,sourcebitsllc/chocolatechip-ui,sjolicoeur/chocolatechip-ui,zartata/chocolatechip-ui,sourcebits-robertbiggs/chocolatechip-ui,chocolatechip-ui/chocolatechipui,tranc99/chocolatechip-ui,chocolatechip-ui/chocolatechipui