Fix typo in documentation

[nasirDoe]

Missing this

inputChange (text) { // your search method this.items = items.filter(item => item.name.contains(text)); // now items will be showed in the suggestion list },

Must be:

inputChange (text) { // your search method this.items = this.items.filter(item => item.name.contains(text)); // now items will be showed in the suggestion list },

[iamstevendao]

Thank you!