Update tutorial

(cherry picked from commit 897371a)

Author: ospillinger

examples/sklearn/iris-classifier/README.md

@@ -190,9 +190,10 @@ $ cortex get classifier --watch
 status   up-to-date   available   requested   last update   avg latency
 live     1            1           1           16s           28ms
 
-class     count
-positive  8
-negative  4
+class        count
+setosa       8
+versicolor   2
+virginica    4
 ```
 
 <br>
@@ -232,9 +233,10 @@ $ cortex get classifier --watch
 status   up-to-date   available   requested   last update   avg latency
 live     1            1           1           16s           24 ms
 
-class     count
-positive  8
-negative  4
+class        count
+setosa       8
+versicolor   2
+virginica    4
 ```
 
 <br>

examples/sklearn/iris-classifier/samples.json

@@ -1,20 +1,20 @@
 [
   {
-		"sepal_length": 5.2,
-		"sepal_width": 3.6,
-		"petal_length": 1.5,
-		"petal_width": 0.3
-	},
-	{
-		"sepal_length": 7.1,
-		"sepal_width": 3.3,
-		"petal_length": 4.8,
-		"petal_width": 1.5
-	},
-	{
-		"sepal_length": 6.4,
-		"sepal_width": 3.4,
-		"petal_length": 6.1,
-		"petal_width": 2.6
-	}
+    "sepal_length": 5.2,
+    "sepal_width": 3.6,
+    "petal_length": 1.5,
+    "petal_width": 0.3
+  },
+  {
+    "sepal_length": 7.1,
+    "sepal_width": 3.3,
+    "petal_length": 4.8,
+    "petal_width": 1.5
+  },
+  {
+    "sepal_length": 6.4,
+    "sepal_width": 3.4,
+    "petal_length": 6.1,
+    "petal_width": 2.6
+  }
 ]