Minor code style change in read.me file of Linear Regression

Author: kelvinlauKL

Linear Regression/README.markdown

@@ -57,12 +57,12 @@ func predictedCarPrice(carAge: Double) -> Double {
 Now for the code which will perform the iterations:
 
 ```swift
-let numberOfCarAdvertsWeSaw = carPrice.count - 1
+let numberOfCarAdvertsWeSaw = carPrice.count
 let iterations = 2000
 let alpha = 0.0001
 
 for n in 1...iterations {
-    for i in 0...numberOfCarAdvertsWeSaw {
+    for i in 0..<numberOfCarAdvertsWeSaw {
         let difference = carPrice[i] - predictedCarPrice(carAge[i])
         intercept += alpha * difference
         slope += alpha * difference * carAge[i]