update readme + remove extraneous line

README.md

@@ -0,0 +1,29 @@
+This script can be fed a file with list of comma-separated values, and will output unique items (ie. remove repetitive ones).
+
+Input file **must** be properly formatted, no extraneous lines or unwanted whitespace.
+
+## Example Input File ##
+
+**values.txt**
+
+```
+2016,2018,2018,2019,2018,2018,2018,2019,2016,2017,2014,2017,2019,2018,2014,2014,2017,2016,2014,2018,2017,2017,2014,2019,2015,2019,2019,2013,2013,2016,2019,2017,2019,2014,2017,2019
+```
+
+## Example Run ##
+
+```
+$> php get-unique-items.php values.txt
+```
+
+## Example Output ##
+
+     Results
+     =========================
+     2016
+     2018
+     2019
+     2017
+     2014
+     2015
+     2013

get-unique-items.php

@@ -12,7 +12,6 @@ if (isset($argv[1])){
 		$input = fread($input_file, filesize($argv[1]));
 		fclose($input_file);
 		
-		
 		$values = explode(',', $input);
 		$unique = array();
 		
@@ -27,6 +26,8 @@ if (isset($argv[1])){
 		foreach ($unique as $u){
 			echo " " . $u . "\n";
 		}
+		
+		return 0;
 	}
 	
 	else{