[+] Add Changing destination element section to README.md
[+] Add Changing destination element section to README.md

reenhanced/rails3-jquery-autocomplete,yihyang/rails3-jquery-autocomplete,FundingGates/rails3-jquery-autocomplete,yihyang/rails3-jquery-autocomplete,FundingGates/rails3-jquery-autocomplete,FundingGates/rails3-jquery-autocomplete,reenhanced/rails3-jquery-autocomplete,reenhanced/rails3-jquery-autocomplete,crowdint/rails3-jquery-autocomplete,crowdint/rails3-jquery-autocomplete,crowdint/rails3-jquery-autocomplete,yihyang/rails3-jquery-autocomplete