Fix ReadMe Link to Ionic Template
Fix ReadMe Link to Ionic Template

Ionic 2 Tutorial template currently links to https://github.com/driftyco/ionis2-starter-tutorial and not https://github.com/driftyco/ionic2-starter-tutorial (notice the **s** and not **c** on ionic) causing a 404 on
ricardo-mello/ionic-cli,ricardo-mello/ionic-cli,devtotvs/thf-mobile-cli,devtotvs/thf-mobile-cli,driftyco/ionic-cli,devtotvs/thf-mobile-cli,ricardo-mello/ionic-cli,driftyco/ionic-cli,driftyco/ionic-cli