S. ID 23-665 Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation, authorizing the approval of a second amendment to a contract between the City of Denton and United Healthcare Insurance Company, Inc., amending the contract approved by the City Council on October 23, 2018, in the not-to-exceed amount of $625,600.00; amended by Amendment 1 approved by Purchasing; said second amendment to continue to provide employee voluntary vision insurance coverage; providing for the expenditure of funds therefor; and providing an effective date (RFP 6826 - providing for an additional second amendment expenditure amount not-to-exceed $107,400.00, with the total contract amount not-to-exceed $782,000.00).