icons: {
                    src: "html5.gif",
                    src2: "../images/html5.gif",
                    src3: "../images/html5.gif",
                    src4: "../images/html5.gif"
                }

<img class="introductionIcon" ng-repeat="i in skill.icons" ng-src="{{i}}">

<img class="introductionIcon ng-scope" ng-repeat="i in skill.icons" ng-src="../images/html5.gif" src="../images/html5.gif">