Added composer installation instructions

Author: andrewdalpino

README.md

@@ -4,19 +4,14 @@ The K Means algorithm is a popular unsupervised learner for clustering samples.
 - **Difficulty**: Easy
 - **Training time**: Less than a minute
 
-## Requirements
-- [PHP](https://php.net) 7.2 or above
-
 ## Installation
-Clone the repository locally using [Git](https://git-scm.com/):
+Clone the project locally using [Composer](https://getcomposer.org/):
 ```sh
-$ git clone https://github.com/RubixML/Colors
+$ composer create-project rubix/colors
 ```
 
-Install dependencies using [Composer](https://getcomposer.org/):
-```sh
-$ composer install
-```
+## Requirements
+- [PHP](https://php.net) 7.2 or above
 
 ## Tutorial
 
@@ -34,15 +29,15 @@ use Rubix\ML\Datasets\Generators\Blob;
 
 $generator = new Agglomerate([
     'red' => new Blob([255, 0, 0], 20.0),
-    'orange' => new Blob([255, 128, 0], 20.0),
-    'yellow' => new Blob([255, 255, 0], 20.0),
+    'orange' => new Blob([255, 128, 0], 10.0),
+    'yellow' => new Blob([255, 255, 0], 10.0),
     'green' => new Blob([0, 128, 0], 20.0),
     'blue' => new Blob([0, 0, 255], 20.0),
-    'aqua' => new Blob([0, 255, 255], 20.0),
-    'purple' => new Blob([128, 0, 255], 20.0),
-    'pink' => new Blob([255, 0, 255], 20.0),
-    'magenta' => new Blob([255, 0, 128], 20.0),
-    'black' => new Blob([0, 0, 0], 20.0),
+    'aqua' => new Blob([0, 255, 255], 10.0),
+    'purple' => new Blob([128, 0, 255], 10.0),
+    'pink' => new Blob([255, 0, 255], 10.0),
+    'magenta' => new Blob([255, 0, 128], 10.0),
+    'black' => new Blob([0, 0, 0], 10.0),
 ]);
 ```
 
@@ -101,6 +96,11 @@ $report = new ContingencyTable();
 $results = $report->generate($predictions, $testing->labels());
 ```
 
+Now we're ready to run the training and validation script from the command line.
+```php
+$ php train.php
+```
+
 Here is an excerpt of the Contingency Report. You'll notice a misclustered magenta point within the red cluster. Not bad, nice work!
 
 ```json

composer.json

@@ -23,8 +23,13 @@
         "league/csv": "^9.5",
         "rubix/ml": "^0.1.0-rc3"
     },
+    "scripts": {
+        "train": "@php train.php"
+    },
     "config": {
         "preferred-install": "dist",
         "sort-packages": true
-    }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }