Step 1: Select the number of similar products()

in frontend/src/App.js [160:166]


              <Typography variant="h5">Step 1: Select the number of similar products (K neighbors):</Typography>
              <p/>
              <FormControl className={classes.formControl}>
                <Select
                  labelId="demo-simple-select-label"
                  id="demo-simple-select"
                  value={this.state.k}